Is there ever a time where Gwen Stefani is spotted that she doesn't look rock star cool? Not a chance.

OK! GALLERY: GAVIN AND GWEN GRAB HANDS TO GO SHOPPING

The No Doubt singer has been on a whirlwind tour promoting the band's new album and has been in London all week for the latest stop on the press tour. Although she was seen sporting a casual look with son Zuma earlier in the day, she glammed it up for a night out on the town.

Looking hot in metallic silver and sleeked back hair, Gwen is looking better than ever.

OK! GALLERY: GWEN STEFANI AND KINGSTON ROSSDALE HOP AROUND LONDON

Did you buy No Doubt's new album, Push and Shove?