Nick Jonas Serenades Delta Goodrem in Mexico

Apparently, Nick Jonas, 18, and his gorgeous older gal pal, Australian singer Delta Goodrem, 26, are still going strong. The couple were photographed enjoyed some alone time in Los Cabos, Mexico, over Labor Day weekend. In addition to soaking up the sun, Nick was even spotted serenading his best girl. Aww...

On Monday, the pop star took to Twitter and teased his followers when he said he had a major announcement to make. "I'm getting so excited about sharing my big news with all of you!" he tweeted. "Who thinks they know what it is?" While many believed he and Delta had gotten engaged, Nick's fans breathed a sigh of relief when they learned his scoop had nothing to do with Delta. Instead, he's headed to Broadway!

On Wednesday, Nick tweeted: "So excited and honored to play the role of J. Pierrepont Finch in How to Succeed in Business Without Really Trying next year!" The role of Finch -- a window washer who rises up the corporate ladder thanks to his self-help book -- has also been played by "Glee's" Darren Criss and "Harry Potter" star Daniel Radcliffe.

But Nick doesn't have to worry too much about filling their shoes. He's been gracing the stage since age 8 when he played Young Scrooge/Tiny Tim in "A Christmas Carol." He also appeared in Broadway productions of "Les Miserables," "Beauty and the Beast," and "Annie Get Your Gun." Most recently, he took on the role of Marius in London's West End production of "Les Miserables," as well as Link Larkin in the Hollywood Bowl's production of "Hairspray."

Would you buy tickets to see him on Broadway?

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