In early 2009, Musso was cast, alongside The Suite Life on Deck and House of Payne's Doc Shaw, in a new television series for Disney XD titled Pair of Kings.The series began production in March 2010, following the production of the final season of Hannah Montana in which Musso will only be a guest. It was announced that Musso would be the host of Disney Channel's latest hidden camera reality series, Prank Stars, which premiered on July 15, 2011.is an American actor, musician, and singer, best known for his three Disney Channel roles as Oliver Oken/Mike Standley III in Hannah Montana; Jeremy Johnson in the animated series Phineas and Ferb; and his Disney XD role as King Brady on Pair of Kings. In some of his other works, he voiced DJ in the computer animated/motion capture film, Monster House, and starred as Raymond Figg in the Disney Channel Original Movie, Life Is Ruff, released in 2005.Musso's self-titled debut album was released on June 2, 2009 on Walt Disney Records.
In 2008 Musso, Miley Cyrus and Billy Ray Cyrus all made "family" guest appearances in Metro Station's music video for "Seventeen Forever".
On Saturday, September 4, 2010 he put on a free concert at the Great New York State Fair's Chevy Court.