Thriller is the third EP released by South Korean boy band, BTOB.

[3][4] On September 4, 2013, BTOB uploaded the music video of Thriller on their official YouTube channel and on the same day they performed Thriller and When I Was Your Man on MBC's Show Champion prior to the release date of the EP.

The second track of the album, Thriller, a dynamic song with a story of a fallen knight coming back to life to finish their mission of saving their princess.

The fourth track Catch Me is a song that is focused on the feelings one experiences that moment he falls in love.

The fifth track Like a Crystal, is a song largely accompanied by an acoustic guitar and the last track Star is a ballad song that samples the bars of the famous nursery rhyme, “Twinkle Twinkle Little Star".