Big Time Rush' Kendall, James, Carlos and Logan are spreading Christmas cheer with a new TV movie, 'Big Time Christmas,' premiering Sunday December 11 at 6pm exclusively on Nickelodeon. The hour-long special features three musical performances by Big Time Rush: an exclusive duet with Miranda Cosgrove of the contemporary classic 'All I Want for Christmas is You;' an animated music video with Snoop Dogg featuring an original song Let's Stay In Our PJs (All Christmas Long); and an all-new holiday song Beautiful Christmas.