Big Time Rush star who co-wrote the hit songs "Oh Yeah" and "Invisible," and starred in Big Time Movie. He was raised in Weston, Florida. He is a member of the band, Big Time Rush, and plays piano and sings. He portrayed Kenickie in the 2016 Fox broadcast of Grease Live! Carlos PenaVega, Actor: Big Time Rush. Carlos studied musical theater at the Boston Conservatory. Born as Carlos Roberto Pena Jr. in Columbia, Missouri. He began starring in the Nickelodeon series The Casagrandes alongside his wife in 2019. Carlos moved to Hollywood in August 2009. He attended Sagemont Upper School. U.S.