Spencer Boldman on Lab Rats (2015)

Spencer Boldman once again showed off his great abs on the Disney XD action comedy series Lab Rats. The eighth episode of the show's fourth season found his character, Adam, bitten by a prehistoric spider causing a major injury to his back. After being cured of the spider's poison, his family realizes he still has a growth on his back. Adam decides to pop it, causing the fluid to spray all over everyone else. The moment of gross-out humor allowed a great look at his gorgeous chest as he lifts his shirt over his head.