Nick Jonas and his castmates surround a cake celebrating the 1 year anniversary of How To Succeed in Business Without Really Trying on Broadway at the Al Hirschfield Theatre in New York City on Wednesday afternoon (March 28).

The official opening was on March 27, 2011 with Daniel Radcliffe and John Larroquette leading the cast.

PHOTOS: Check out the latest pics of Nick Jonas

It was also a big day for Nick – it’s American Diabetes Association Alert Day. Alert Day serves as a “wake-up call” urging the public to take the Diabetes Risk Test to find out if they are at risk for developing type 2 diabetes.

“I live w/ type 1 diabetes every day— but did you know 7 mill ppl have type 2 & don’t know it?” he tweeted.

10+ pics inside…