GWEN STEFANI Hollaback Girl (2005 UK 4-track enhanced CD single including Instrumental version & Hollatronix Remix plus enhanced CD-Rom Video picture sleeve) 1. Hollaback Girl - Album Version 3:202. Hollaback Girl - Hollatronix Remix by Diplo 2:173. Hollaback Girl - Instrumental 3:204. Hollaback Girl - CD-Rom Video