What on Earth could bring together singer Rihanna, "Big Bang Theory" star Jim Parsons, and comedy legend Steve Martin? It's a Dreamworks animated movie called "Home," and the three stars provide voices to its characters.

"Extra's" AJ Calloway recently sat down with the unlikely trio to chat about the movie. The conversation turned to Rihanna's recent star-studded birthday party, with AJ wondering if Jim and Steve were invited to the wild proceedings. Watch their hilarious reactions!

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