Gwen Stefani vamps it up in a leather peplum top with bandmate and ex-boyfriend Tony Kanal

Their breakup inspired the hit song Don't Speak and nearly split up their band in the nineties

But No Doubt bandmates Gwen Stefani and Tony Kanal pushed on and concentrated on their Grammy-winning band, and the ex-couple were seen leaving their hotel and heading to the recording studio earlier today in Manhattan.

Ex-couple: No Doubt bandmates Gwen Stefani and Tony Kanal were seen leaving their hotel and heading to the recording studio earlier today in Manhattan

Time has yet to catch up with the gorgeous frontwoman, who turns 43 next month, and she flashed a smile with her trademark red lips in a vampy all-black ensemble which included a sleeveless leather top with asymmetrical peplum waistline and skinny trousers.

With her movie star hair down, the Rocksteady songstress accessorised her sexy glam look with leopard-print cat-eye sunglasses and peep-toe platforms.

Tony rocked hair that matched Gwen's platinum locks and the 42-year-old guitarist looked dapper in black jeans and a black vest over a purple dress shirt and silver tie.

Glamorous: Gwen, who turns 43 next month, vamped it up in a sleeveless leather top with asymmetrical peplum waistline and skinny trousers

Vampy star: The Rocksteady songstress accessorised her sexy glam look with leopard-print cat-eye sunglasses and peep-toe platforms

The stunning mother-of-two has been married to Bush frontman Gavin Rossdale for a decade and the musical pair are parents to six-year-old Kingston and four-year-old Zuma.

Asked whether she managed to juggle motherhood with her career, she told British Elle magazine: ‘It’s not possible. There are always days that somebody suffers.

‘The only thing I really worry about is, again - I keep bringing it up because it’s my biggest stress - how do I do this and that?

‘How do I do both? So that’s like the constant battle that I have every day. I do worry about that all the time.’

Meanwhile Kanal has a one-year-old daughter Coco with his partner actress Erin Lokitz.

However, artistically Gwen and Tony are still very much together.

Yesterday, the Hollaback Girl singer took to the stage with her ska-pop band for the NFL Opening Kickoff concert at the Rockefeller Centre in New York City, where she showed off her perfectly toned arms and washboard stomach.

After an 11-year break, No Doubt performed at the special concert alongside Mariah Carey who sang a few numbers - one alongside Cee-Lo Green.

Their highly-anticipated album Push and Shove will hit stores on September 25, and presales began today for the band's six headlining shows at Los Angeles' Gibson Amphitheatre happening November 24 to December 4.

The L.A.M.B. designer will likely be sticking around the Big Apple as New York Fashion Week just began.

Mother-of-two: Gwen has been married to Bush frontman Gavin Rossdale for a decade and the musical pair are parents to Kingston, 6, and Zuma, 4