Charlie Sheen made a sudden surprise appearance on Jimmy Kimmel Live! Monday night during an interview with Mark Cuban of ABC’s Shark Tank when Kimmel and Cuban were talking about Sheen.

Cuban was saying, “Charlie’s a smart guy…He doesn’t get near the credit that he deserves for being smart.” At that very moment, Sheen exploded onto the set, and the crowd erupted in a loud cheer which only grew louder when Sheen threw “Tiger Blood” t-shirts out to the audience and gave Kimmel a big wet kiss on the mouth (side note – both men had their eyes closed ;).

And, he left just as quickly as he came…watch the video clip for yourself: