Buzz Bites (9/14/12): Watch Justin Bieber And Big Sean Perform During The 'America's Got Talent' Finale

Justin Bieber and Big Sean perform at last night's "America's Got Talent" finale.

+ Watch Justin Bieber and Big Sean performing "As Long As You Love Me" at last night's "America's Got Talent" finale. (Neon Limelight)

Pink's The Truth About Love drops on Tuesday, Sept. 18, but in the meantime, she's released the lyric video for her "True Love" track. The song features Lily Rose Cooper (formerly known as Lily Allen). (MTV News)

+ Grab Waka Flocka Flame's Salute Me or Shoot Me 4: Banned From America mixtape, which he released yesterday. Guests include Gucci Mane, Chief Keef, Wale, and more. (MTV Hive)

+ See Ke$ha riding a Tokyo subway while she nonchalantly previews the melody to her forthcoming song, "Die Young," by whistling it. NBD. (Idolator)

+ Listen to a full album stream of Go Radio's Close The Distance. The album officially drops on Tuesday. (Billboard)

+ Check out part one of a seven-episode documentary on Meek Mill. The doc chronicles the rapper as he tracks his Dreamchasers 2 mixtape and his forthcoming studio album, Dreams and Nightmares, due out Oct. 30. (Pitchfork)

+ And now, please enjoy Girl Talk's cat meow-singing 'Shine" by Collective Soul. That is all. (Pitchfork)

Photo credit: Virginia Sherwood/NBC