No Doubt's reunion is, well, no doubt underway as the group has now successfully performed three shows together. This marks the pop-rock group's first set of concerts together after a five year hiatus.

Earlier this month, the group played a last-minute warm-up show in Atlantic City before taking the stage closing out the Bamboozle Festival in East Rutherford, N.J.

On Friday (May 17), the Gwen Stefani-led crew -- best known for enormous radio hits from the '90s like "Spiderwebs" and "I'm Just A Girl" -- kicked off its headlining tour at the Mandalay Bay Events Center in Las Vegas, to continue on to 50+ destinations this summer.

Early reviews are in and, as evidenced by some review synopses below, No Doubt is in perfect form for a comeback, even if without new material to tout.

Complete tour dates are listed on No Doubt's website.


ATLANTIC CITY:

Philadelphia Inquirer:
"The platinum-haired Stefani remains a great performer, impossible to resist... Guitarist Tom Dumont, bassist Tony Kanal, and drummer Adrian Young - augmented by horn-wielding sidemen Stephen Bradley and Gabriel McNair - played with gusto, locking in on old faves... [Stefani] owned every inch of the stage with no apology."

New Jersey Star-Ledger:
"The band basically picked up where it left before it went on hiatus in 2004. It was a high-energy, glitch-free tour opener, with the band, lacking new material, free to focus on highlights of its previous years together... Throughout the show, the band moved smoothly from reggae to ska, punk-pop and power ballads... [Stefani] couldn't have looked happier."

BAMBOOZLE:

Rolling Stone:
"With gusto, [Stefani] bounced around, skanked like a ragdoll, banged her head, flailed her arms and basically ran around like a white blur... The band hammered away with a set made up exclusively of their voluminous catalog of hit singles - excepting a quick detour into 'Tragic Kingdom' album track 'Different People' and a lively cover of the Skatalites 1964 first-wave ska classic 'The Guns Of Navarone.'"

LAS VEGAS:

L.A. Times:
"No Doubt's always been big on communicating the joy of playing music, and there was no shortage of that during a nearly 90-minute set chocked with hits... a smartly conceived, thrillingly executed show... a stirring and convincing welcome back."

Las Vegas Review-Journal:
"Egged on by loud, lusty approval throughout the show, No Doubt... seemed eager to make up for lost time, dancing around in circles, spinning themselves dizzy, bounding across the stage like they were at a track meet. Through it all, the band remained in a jubilant mood, big smiles plastered across their faces."

People:
"No Doubt returned to the stage as if they hadn't missed a beat... The band appeared energetic as it played new songs but stuck mainly to hits, sending the audience into a frenzy when Stefani ran into the middle of the crowd to sing 'I'm Just A Girl.'"