Adam Lambert: Leopard Print Shirt at Fantabuloso Concert!

Adam Lambert rocks out on stage during the 103.5 KISS FM 2012 Fantabuloso Concert held at the Allstate Arena on Friday (May 18) in Chicago, Ill.

The 30-year-old singer wore a leopard print shirt under his blazer during his performance.

PHOTOS: Check out the latest pics of Adam Lambert

Adam is on a mission to get his new album Trespassing to number one on the iTunes charts.

“Let’s get #Trespassing to #1 on @iTunes! Once we get there, I’ll give you a sneak peak of the NCOE video!” he tweeted.