<Tr> <Th> 36 </Th> <Td> 16 </Td> <Td> "Big Time Girl Group" </Td> <Td> Jon Rosenbaum </Td> <Td> Scott Fellows </Td> <Td> April 9, 2011 (2011 - 04 - 09) </Td> <Td> 213 </Td> <Td> 5.7 </Td> </Tr> <Tr> <Td_colspan="8"> <P> The boys of Big Time Rush are jealous when their single "I Know You Know" is taken by Kat's Crew, a female pop group whom Gustavo is working with . A war begins between Kat's Crew and Big Time Rush, who believe that Gustavo will lose interest, and cancel them . BTR seek advice from Gustavo's first boy band, Boys in the Attic, whom also were destroyed by a female group . Gustavo chooses BTR over Kat's Crew, but the two bands produce a song and video together . Meanwhile, Katie and Mrs. Knight try to find good friends . </P> <P> Special guest star: Cymphonique Miller as Kat, the lead singer of Kat's Crew </P> <P> Guest Starring: Fred Tallaksen as Mr. X, Challen Cates as Mrs. Knight, Tucker Albrizzi as Tyler, Danielle Bessler and Cristal Guel as Kat's Crew, Andrew Bowen as the leader of Boys in the Attic, and Daran Norris as Buddha Bob . </P> Songs Featured: I Know You Know </Td> </Tr> <P> The boys of Big Time Rush are jealous when their single "I Know You Know" is taken by Kat's Crew, a female pop group whom Gustavo is working with . A war begins between Kat's Crew and Big Time Rush, who believe that Gustavo will lose interest, and cancel them . BTR seek advice from Gustavo's first boy band, Boys in the Attic, whom also were destroyed by a female group . Gustavo chooses BTR over Kat's Crew, but the two bands produce a song and video together . Meanwhile, Katie and Mrs. Knight try to find good friends . </P> <P> Special guest star: Cymphonique Miller as Kat, the lead singer of Kat's Crew </P>

Til i forget about you big time rush episode