Big Time Rush is an American pop boy band that formed in 2009. The band consists of Pena, Kendall Schmidt, James Maslow, and Logan Henderson, all on vocals. Pena co-wrote the song "Oh Yeah" off of the group's first album, BTR. On the second album, he wrote "Invisible" along with Charley Greenberg, Cody Williams, Daniel Andrew Wayne, Jonathan Rotem. As of 2011, the band has released two albums, BTR and Elevate. They recently released their third album, 24/Seven, in which Pena wrote and co-wrote almost every song. He co-wrote "Picture This" with bandmate, James Maslow. Pena wrote "Lost in Love" for his wife, Alexa PenaVega. He also wrote the song "Na Na Na" on 24/Seven. In addition, BTR embarked on the Summer Break Tour, in support of the album.