 Following the tour , Alice in Chains entered the studio to record demos for its next album , but ended up recording five acoustic songs instead . While in the studio , drummer Sean Kinney had a dream about " making an EP called Sap " . The band decided " not to mess with fate " , and on March 21 , 1992 , Alice in Chains released their second EP , Sap . The EP was released while Nirvana 's Nevermind was at the top of the Billboard 200 charts , resulting in a rising popularity of Seattle @-@ based bands , and of the term " grunge music " . Sap was certified gold within two weeks . The EP features guest vocals by Ann Wilson from the band Heart , who joined Staley and Cantrell for the choruses of " Brother " , " Am I Inside " , and " Love Song " . The EP also features Mark Arm of <unk> and Chris Cornell of Soundgarden , who appeared together on the song " Right <unk> " , credited to " Alice <unk> " in the liner notes . In 1992 , Alice in Chains appeared in the Cameron Crowe film Singles , performing as a " bar band " . The band also contributed the song " Would ? " to the film 's soundtrack , whose video received an award for Best Video from a Film at the 1993 MTV Video Music Awards . 
