Whose song is Abba (made famous by ~) (karaoke) / Dancing queen?

Artist		Album
100 Hits Presents 70's Karaoke (4/5)		100 Hits Presents 70's Karaoke (4/5)
100 Hits Presents Girls Night Karaoke (2/5)		100 Hits Presents Girls Night Karaoke (2/5)
100 Hits Presents Karaoke (5/5)		100 Hits Presents Karaoke (5/5)
100 Hits Presents Pop Anthems Karaoke (3/5)		100 Hits Presents Pop Anthems Karaoke (3/5)