Who's That Girl (Robyn song)

"Who's That Girl"
Single by Robyn
from the album Robyn
B-side	"Message in a Bottle" "Sexual Eruption"
Released	29 June 2005 (Sweden) 28 April 2008 (UK)
Recorded	2004
Genre	Electropop
Length	3:15 (radio edit) 3:50 (album version)
Label	Konichiwa
Songwriter(s)	Robyn Alexander Kronlund The Knife
Producer(s)	The Knife
Robyn singles chronology
"Be Mine!" (2005) "Who's That Girl" (2005) "With Every Heartbeat" (2007)
Music video
"Who's That Girl" on YouTube

"Who's That Girl" is a song by Swedish pop singer Robyn, written and composed by herself and sibling production duo The Knife for her self-titled fourth studio album (2005). The track was released as the album's second single in Scandinavia in 2005 and fifth UK single on 28 April 2008.

The track became a minor success on the charts, peaking at number thirty-seven on the Swedish Singles Chart, where it was the third biggest hit from the Robyn album there.^[1] In the UK, where the single featured remixes by Seamus Haji, Rex the Dog, and Drop the Lime,^[2] "Who's That Girl" reached number twenty-six on the UK Singles Chart.^[1]

The song was recorded by Yelle as "Qui est cette fille?" as part of the iTunes Foreign Exchange, where Robyn recorded "À cause des garçons" as "Because of Boys".