"Teen Titans Go!'s Four-Night 'The Night Begins To Shine' Event Gets a Soundtrack Featuring Cee-Lo Green"
“The Night Begins to Shine” is an original song by the band B.E.R., which Telepictures Music welcomed to its library back in 2005, but it wasn’t until nearly 10 years later that the song made it big when it played in the Teen Titans Go! episode “Slumber Party,” which opens with Cyborg lip-syncing to it.
The song made another appearance in the “40%, 40%, 20%” episode which aired the following season.