Nick's career started when he was discovered at the age of six in a barber shop, while his mother was getting her hair cut and was referred to a professional show business manager. At the age of 7, he began performing on Broadway.He had acted in several plays, including A Christmas Carol (in 2000 as Tiny Tim and Scrooge at eight), Annie Get Your Gun (in 2001 as Little Jake), Beauty and the Beast (in 2002 as Chip), and Les Miserables (in 2003 as Gavroche).After Les Misérables closed, he performed in The Sound of Music (as Kurt) at the Paper Mill Playhouse.

On June 21, 2010, Jonas made his West End debut performing in Les Misérables for the second time, but this time as the role of Marius Pontmercy. Nick was originally supposed to play the role for only three weeks, but was able to extend his run until July 24, 2010 because of changes in the Jonas Brothers tour schedule. He also appeared in the 25th Anniversary Concert at The O2 Arena on October 3, 2010, again playing the role of Marius Pontmercy ^.

On August 17, 2007, Jonas, along with his brothers, guest starred in an episode of Hannah Montana, which aired after the premiere of High School Musical 2 and the Disney Channel show Phienas and Ferb.The episode broke basic cable records with a record 10.7 million viewers and became basic cable's most watched series telecast ever.

Jonas and his brothers filmed a Disney Channel Original Movie called Camp Rock where they play a band called "Connect Three." Joe plays the lead male role and lead singer "Shane Gray"; Nick plays the role of "Nate," a guitarist; and Kevin plays the role of "Jason," also a guitarist. A soundtrack for the movie was released on June 17, 2008. The movie premiered on June 20, 2008 in the USA on Disney Channel, and Canada on Family. Production began on the sequel, Camp Rock 2: The Final Jam in September 2009 and it premiered during the summer of 2010.

The reality short series, Jonas Brothers: Living The Dream, premiered on Disney Channel on May 16, 2008. The show, which ran until September 5, 2008, documents the brothers' lives on the Look Me In The Eyes Tour. The name was inspired by the band's hit song "When You Look Me In The Eyes". The series was renewed for a second season, which premiered on March 21, 2010.The second season follows the band on the European leg of their World Tour 2009.

Jonas and his brothers previously starred in the Disney Channel Original Series: JONAS about a pop band trying to live a normal life, which premiered May 2, 2009 and concluded on March 14, 2010. Filming for the second season began in February 2010. The second season was renamed JONAS L.A, and premiered on June 20, 2010. On November 8, 2010, it was announced that the series had been cancelled.

In 2002, while performing in Beauty and The Beast, Nick had written a song with his father called "Joy to the World (A Christmas Prayer)." With background vocals from the Beauty and the Beast cast, Nick performed the song on the 2002 annual Broadway "Equity Fights AIDS" album, Broadway's Greatest Gifts: Carols for a Cure, Vol. 4.In November 2003, INO Records received a demo copy of "Joy To The World (A Christmas Prayer)."The label released the song to Christian Radio, where it quickly became popular on Record & Radio's Christian Adult Contemporary Chart.While Nick was working on his solo project, Joe followed in his footsteps to Broadway, appearing in Baz Luhrmann's production of La Boheme.

By September 2004, an executive at Columbia Records found out about Nick's song.Nick was soon jointly signed to INO Records and Columbia Records and released the single "Dear God".A second single, "Joy to the World (A Christmas Prayer)" (a new solo recording), was released on November 16.It was supposed to be followed by a December release of a self-titled solo album Nicholas Jonas, but the album was pushed back.It did, however, get a limited release.Nick, along with Kevin and Joe, had written several other songs for the album.

In early 2005, Columbia Records' new president, Steve Greenberg, listened to Nick's record. While Greenberg did not like the album, he did like Nick's voice.

Jonas is currently working on a side project from the Jonas Brothers called "Nick Jonas and the Administrations". Their debut album Who I Am was released February 2, 2010. The band members consist of Tommy Barbarella on keyboard, Michael Bland on drums, John Fields on bass, and David Ryan Harris on guitar.Although David Ryan Harris recorded guitar in the studio for Who I Am he was unable to go on tour with the rest of band and was ultimately replaced by Sonny Thompson.

In January 2010, Jonas embarked on the Who I Am Tour with the Administration. This was Jonas' first tour without his brothers. The tour consisted of 22 dates that began on January 2, 2010 in Dallas, Texas and concluded on January 30, 2010 in Berkeley, California.

Denise Jonas — mother of the teen heartthrobs Kevin, Joe, and Nick Jonas of the boy band the Jonas Brothers — was shocked when her youngest, Nick, now 16, was diagnosed with type 1 diabetes in 2005. We sat down with Denise, her husband, Kevin, and Nick — a spokesperson for Bayer Diabetes Care — to talk about how he’s able to control, even transcend, the disease.

GH: Nick, what were your symptoms right before you were diagnosed with type 1 diabetes?
Nick Jonas: All these things were happening. I was losing weight, drinking tons of water, using the restroom all the time. I was peeing 20 times a day! I couldn’t close my mouth because I was so thirsty and my tongue would get very hard. We were staying in a hotel at the time, and I remember going back to the room and sitting in a chair. I sat there by myself for 15 minutes, and didn’t fall asleep. My parents walked in and that was the moment they knew something was wrong. We went to the doctor the next day, and found out it was diabetes.

GH: Many people experience intense cravings before they’re diagnosed. Did you?
Nick: Yes, I was really, really hungry for certain foods, like Pizza Hut pizza. I actually had this whole plan the night I was diagnosed. I had this craving for steak and Pizza Hut. Obviously I didn’t have either one that night.

GH: When you found out you had diabetes, your blood sugar level was over 700 milligrams per deciliter, right? (Normal is about 70 to 120 mg/dl.)
Nick: Yes. My doctor actually told me at 500 mg/dl, I could have lost my vision.

GH: Denise, was it a complete shock to learn that Nick had type 1 diabetes?
Denise Jonas: Well, I knew Nick was hungry and thirsty and very moody, which is unlike him. Those are classic signs of diabetes, but at the time I thought maybe they were related to growing.

GH: After the diagnosis, what were you thinking initially? Were you scared?
Denise: I was terrified that diabetes might ruin Nick’s life. I thought that his being diagnosed would completely stop all the progress that he had made so far. I thought all his hopes and dreams would be completely devastated by it, and it might stop him from touring and performing and doing what he loves. But he proved me wrong. Taking the time to be educated was a big factor for both of us, and for our family. We started learning as much as we could, to help him manage his condition.

GH: How do you manage your diabetes day to day, Nick?
Nick: It starts in the morning. When I wake up, the first thing I do is check my blood sugar, see where I am. Then, I usually eat breakfast, typically an omelet because it has eggs, which are good, and other things that help me stay stable. Throughout the day, I check my blood sugar regularly, probably 9 to 10 times a day.

GH: Your shows are so full of energy. You do flips, stunts — you don’t stop! I’d imagine you’d have to be in top shape to perform the way you do.
Nick: Yeah, it could be dangerous if I had a low and then went out on stage. The good thing is that the Bayer Contour meter I use is very accurate. Say my blood sugar was 20 mg/dl off when I went on stage — that 20 could mean a lot by the end of the day.

GH: So you use the Bayer Contour meter to check your glucose levels, but you also give yourself insulin shots, right? Denise, were needles scary for him at first?
Denise: There is very little that actually scares Nicholas, but yes, he does give himself shots when needed. He wears an insulin pump, so shots aren't needed all the time. The shots were an adjustment for him at first, I think, but he is more adjusted than I am to everything! He is pretty amazing and has handled this tremendously well.

GH: How has Nick’s diet changed since the diagnosis? Is there anything he can't eat anymore?
Denise: He certainly has removed a lot of his sugar intake and stays away from regular soda. He no longer drinks regular Coke, or eats things like syrup on waffles and pancakes. He misses it, but he has adjusted.

GH: Kevin, what do you think families need to know if a child is diagnosed with a chronic health condition?
Kevin Jonas: Well, obviously we’ve seen that you can live your dreams and do what you want while still dealing with a chronic illness. Life is difficult as it is. You add diabetes on top of it, and it becomes even more difficult. So I think it’s important to find ways to simplify life with diabetes. That’s what we’ve found. I believe that’s possible when you rely on other people, like your family. I’m an independent person and always have been, but I also rely on my family’s support and their help with it all.

GH: Denise, what advice do you have for moms?
Denise: If your child develops a chronic disease, you can’t let your fear hold him back. You have to help him live his dreams — healthily. And try not to be too hard on yourself as a mom. I can be really hard on myself sometimes. You just have to remember that you’ve been given this child as a gift, and it’s your job to support him and let him flourish