There are at least five bands named The Ninjas:

1) The most prominent is the Australian "garage rock" outfit (Not pictured).
Formed in 2011 the band consists of singer Josh Stewart, guitarist Patrich Ferris, bassist Donald Mackay, and drummer Mark Cosgrove.
The band's catalogue of releases is fairly sparse though their most well known songs are singles: "Kill 'em All" and "Yeah Yeah".

2) The Ninjas were an Ann Arbor ska band who formed in August of 2002 and released their first album, Skaflakes, in 2003. Throughout the life of the band members included: Miller Tinkerhess on trumpet and vocals; Caleb Curtis on baritone and alto saxophones; Jake Scobey-Thal on tenor saxophone; Stephan Wunderlich on guitar and vocals; Nick Lundholm on guitar, bass and vocals; Derek Caldwell on trombone; Stuart Parnes on bass and Cade Sperlich on drums.

Their style was a mix of ska, punk, and jazz (several of the members were in the Community High jazz band and went on to study jazz in college), and they were immediately popular around Ann Arbor because of their fun, laid-back energy and mildly absurd lyrics. They were responsible for the increased popularity of the Neutral Zone, a teen area where they often played shows, and also for the renewed popularity of ska in Ann Arbor.

They released a second album, Platypus, in 2004 after performing with bands such as the Arrogant Sons of Bitches, Big D and the Kids Table, I Voted for Kodos, Streetlight Manifesto, and Mustard Plug, as well as winning the grand prize in the Spontaneous Combustions fundraiser contest for the Neutral Zone. A short tour supporting Platypus occurred in 2004.

They disbanded in 2006 because of distance difficulties. Three of the final members of The Ninjas formed a rock band called The Setup in 2006.

3) The Ninjas is a swedish live jiggy band with Anton K who now is active with the group Grand Prix.

4) There is also a lo-fi noise pop band from Maine, who has done a number of tapes, and a one sided 12" ep on the Black Bean and Placenta tape club label. They have made and appearance at the Northwest popfest in 1997. They later evolved in to Black Dice.

5) The Ninjas were an american punk rock band formed around 1999 who played mostly in South Bend, Indiana and whose songs primarily concerned traditional Ninja topics: missions, stealth, and honor. They took the stage in ninja outfits, and never showed their faces in public. In addition to releasing two EPs, two of their songs, "I Am The Shadow, and "Hasegawa Must Die" were featured on the compilation album Shit Like A Champion Today. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.