August 7th, the ROCK STAR: INXS cast along with friends and celebrities got together for an exclusive mansion party. The bash was held at the Rock Star Mansion in Hollywood where the rockers are staying while they vie to become the lead singer of INXS.

On hand for the party and acoustic jam session were members of INXS, "Rock Star" co-hosts Brooke Burke and Dave Navarro and show creator Mark Burnett as well as celebrities Ray Liotta, Matthew Perry, Jeff Probst, Seth Green and tennis greats Serena & Venus Williams.