"Bitch Lasagna" (originally named "T-Series Diss Track" and stylized in all lowercase) is a song by Swedish YouTuber and comedian PewDiePie in collaboration with Dutch music producer Party In Backyard. The song satirizes Indian music label T-Series, as a response to predictions that T-Series would surpass PewDiePie in terms of subscriber count. The song was one of the first events in the PewDiePie vs T-Series competition, in which the two channels competed for the title of the most-subscribed YouTube channel.