One of the progenitors of prog rock, Rush made a mark on the industry with their impeccable musicianship, heard on songs like "Tom Sawyer." The tribute band kRush pays homage to the Canadian group by playing the big hits and deep cuts with near-perfect duplication. Joining kRush is Kick It Out, a tribute to Heart. Fronted by hard-rocking sisters Nancy and Ann Wilson, Heart sold millions of albums through the '70s and '80s. Kick It Out faithfully re-creates the Rock and Roll Hall of Famers' greatest hits, including crowd-pleasers like "Crazy on You," "Magic Man" and "Barracuda." Relive these two classic bands at World Café Live in Philadelphia.