Big Time Rush was created by the Nickelodeon network and starred in the TV show of that name from 2009-2013. "Count On You" is a track from their debut album, B.T.R.. The song was written by four outside writers: Nicholas Furlong, Carmen Michelle Key, Sammy Kuya, and Kasia Livingston.
The sixth season winner of American Idol, Jordin Sparks, features on this song. James Maslow told Artist Direct how the collaboration came about: "Jordin is an unbelievable singer. If you hear her sing in real life, she sounds just as good live every time. She absolutely deserves to be where she is. She's so talented, and she's a sweetheart too. We're on the same label. She wanted to get into acting, so we wrote an episode about her. She came on and was a great actress. The song is one of our first group ballads. It's a five-way ballad, but it turned out pretty cool. Usually, a duet has one person on each side. This has her voice one side and then there are our four voices on the other [Laughs]. It worked out though. It was such a pleasure to have Jordin on the song. She became a good friend of mine. She took me to the actual show before she was in it last time [Laughs]. She's so down-to-earth like that."