Skylar Grey XXIII :: “Castle Walls” by T.I. & Christina Aguilera Drops
T.I. and Christina Aguilera‘s song “Castle Walls” drops today, on T.I.’s No Mercy album. The track features Christina Aguilera singing the chorus and bridge, which was written by Skylar Grey, and the song itself is produced by Alex Da Kid. The track is set to be released as the next single from No Mercy.
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