Gavin Rossdale, wife Gwen Stefani playing Las Vegas separately

By Melissa Arseniuk

Monday, June 8, 2009 | 7:03 a.m.

Erik Kabik/ RETNA

Gavin Rossdale performs at the pool at The Hard Rock Hotel & Casino in Las Vegas, Friday, June 5, 2009.

Gavin Rossdale

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Tom Donoghue/www.donoghuephotography.com

No Doubt, with lead singer Gwen Stefani, kicked off its summer tour Saturday night, May 16, 2009, at Tiger Jam 12 in Mandalay Bay Events Center.

Gavin Rossdale and wife Gwen Stefani are like two rock ‘n roll ships passing through Las Vegas in the night.

Each member of the musically-inclined couple has been through town recently, though never at the same time.

Rossdale is the most recent of the pair to put in an appearance in our fair city. His post-Bush solo effort took to the stage at the Hard Rock Friday night.

Prior to his poolside performance at “Friday Night Live,” Rossdale’s most recent Las Vegas showing was on April 4, as part of Pet-A-Palooza.

He also rocked LAX that weekend, on the night before his pet-friendly performance at Sam Boyd Stadium.

In the meantime, Stefani and her band, No Doubt, came to town to headline Tiger Jam at Mandalay Bay on May 16.

She and her bandmates were spotted throughout the city during the week leading up to the show, eating at restaurants and seeing Cirque du Soleil shows.

Rossdale, meanwhile, was nowhere to be found.

Still, Stefani wasn’t alone: She her son, Kingston, with her all week. (She and Rossdale have two boys: three-year-old Kingson and nine-month-old Zuma. Rossdale also has an older daughter from a previous relationship.)

Back in May, Rossdale said he was looking forward to bringing his eldest son on the road with him this summer. However, it is not clear whether or not Kingston joined his dad on this weekend’s trip to Las Vegas.

As a general rule, the famous family tends to keep the children out of the spotlight.

While Rossdale was rocking the Hard Rock Friday night, his wife was busy onstage, too – in Atlanta, Ga.

Who knows when the couple’s paths will once again cross: The matriarch’s tour continues tonight in Charlotte, NC, tonight, while Rossdale will follow the road to L.A. for a show at the El Rey Theater later this evening.

While the former Bush frontman has yet to announce any future plans to return to Las Vegas, Stefani and No Doubt will be back in town later this summer when the band’s reunion tour rolls through the Joint at the Hard Rock.

Panic at the Disco and The Sounds will join the recently-reunited band on the Aug. 7 bill. The concert was announced earlier this week. Further details can be found here.