An "electronic and hip hop ballad" influenced by dubstep, techno, and drum and bass.

The beat was originally intended for the rap group Three 6 Mafia . 👽 Lyric Meaning & Themes

It helped Teenage Dream become the first album by a female artist to produce five #1 singles, tying a record set by Michael Jackson.

The album version was solo, but the single release was reworked to feature two verses from Kanye West.

It uses extraterrestrial imagery to describe a lover who is "from a different dimension" and "not like the others".

She wore three distinct styles (space being, angelic songstress, warrior princess) that each took 5–6 hours to apply.