The ship sank but Gaelic Storm rose after their appearance in the mega-blockbuster movie “Titanic.” They were the “steerage band,” the fun-loving musical mates playing for the below deck third-class passengers and crew on the ill-fated ocean liner.

The high energy of this Celtic band from California caught on with audiences and helped make Gaelic Storm an audience favorite nationwide.

The band performs Oct. 7 at the Admiral Theatre, as part of the Main Stage Series.

Gaelic Storm is Ellery Klein on fiddle; Pete Purvis on uillean pipes, tin whistle, daeger pipes and highland pipes; Ryan Lacey on drums and world percussion, and founding members Patrick Murphy on vocals, piano, accordion, spoons and harmonica, Steve Wehmeyer on bodhran, vocals and didgeridoo and Steve Twigger on vocals, guitar, mandolin and bouzouki.

The founding trio met on St. Patrick’s Day 1996 at O’Brien’s Pub in Santa Monica, Calif. As the story goes, their first performance was such a crowd-pleaser that the crowd wouldn’t let them leave the stage even thought there was another band waiting to go on.

They might have happily played the Los Angeles pub scene forever had they not been cast as the “party band” in “Titanic.” The band landed the part by being themselves — drinking pints and playing weekly at O’Brien’s.

They may come for the party, but fans stay for the music. Gaelic Storm redefines Celtic music with compelling original compositions and fresh arrangements of traditional tunes.

A hugely successful national tour followed their movie debut, along with six albums, from their eponymous debut to their latest, “Bring Your Wellies,” released this summer. It debuted at No. 2 on the Billboard World chart, No. 16 on the Internet Sales chart and No. 31 on the Independent Album chart. The album is said to “capture the contagious energy of (their) renowned live performances” and channel the “rowdy communal feel of an Irish pub on raucous sing-alongs, driving pipe sets and spirited fiddle tunes.”

They tour relentlessly, playing more than 125 dates a year. They frequently headline major Celtic festivals, including the premier event, the Milwaukee Irish Fest, where they have become an exception to the festival’s policy of not having the same headliner in consecutive years.

Murphy tells a story of meeting Michael “Lord of the Dance” Flatley in Murphy’s hometown of Cork, Ireland.

“I told him he did a superb job of advancing Irish culture throughout the world, like the Chieftains have for years, and he said, ‘In fairness to you, you’ve probably introduced Irish music to five minutes of fame with that little film clip,’” referring to a Gaelic Storm documentary which airs frequently on Cinemax.

Gaelic Storm and Celtic music have had more than five minutes of fame, and audiences will be treated to a full strength Gaelic Storm when the group performs 8 p.m. Oct. 7 at the Admiral Theatre, 515 Pacific Ave., Bremerton.

Tickets are $51 for main floor dinner show, which starts at 6:30 p.m., $20 main floor show only and loge and $12 balcony. All seats reserved. Tickets are available at the box office or by phone at (360) 373-6743.