"Boyfriend - Big Time Rush: Dance Party" is a high quality rip of "Boyfriend" from Big Time Rush.
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The vocals of the advertised track are mashed up with "Ren'ai Circulation" from Bakemonogatari. At 2:36, "Worldwide" by Big Time Rush is added to the mashup. At 2:41, a sample of "The Next Episode" by Dr. Dre ft. Snoop Dogg, Kurupt and Nate Dogg is played.