Tracklist
| Radar | 3:49 |
| Radar (Instrumental) | 3:48 |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| 88697-32448-2 | Britney Spears | Radar (CD, Single, Promo) | Jive | 88697-32448-2 | US | 2008 |
| none | Britney Spears | Radar (CDr, Single, Promo) | Jive | none | US | 2008 |
| none | Britney Spears | Radar (CDr, Single, Promo) | Sony BMG Music Entertainment | none | Poland | 2008 |
| none | Britney Spears | Radar (Mixes) (CDr, Single, Promo) | RCA Label Group | none | UK | 2009 |
| PRSP09-38 | Britney Spears | Radar (Remixes) (CDr, Maxi, Promo) | Sony Music | PRSP09-38 | Poland | 2009 |
| none | Britney Spears | Radar (Remixes) (CDr, Unofficial) | Jive | none | Brazil | 2009 |
| none | Britney Spears | Radar (CDr, Promo) | Jive, Zomba Label Group | none | US | 2009 |
| none | Britney Spears | Radar (CDr, Single, Promo) | RCA Label Group | none | UK | 2009 |
| 88697-32448-2 | Britney Spears | Radar (CDr, Single, Promo, Unofficial) | Jive | 88697-32448-2 | Israel | 2014 |

