geoff gunderson

Guitarist/Vocalist Geoff Gunderson has performed for four decades in and around Sioux Falls, SD.  In the 70’s and 80’s with Wakefield (SD Rock ‘n’ Roll Hall of Fame 2017) and later Jukebox Zeroes, he headlined stages across the Midwest and opened for ZZ Top, Foreigner, Joan Jett, Night Ranger, Collective Soul and others.  Geoff is a classical and contemporary guitar instructor at Augustana University and directs the nationally accredited Childbloom Guitar Program of Sioux Falls.  He has performed with the SD Symphony, Sioux City Symphony, Sioux City Rockestra, Kickin’ Brass Band, and many others.  Geoff is also active as a solo artist playing a wide variety of genres.

dick bartling

Drummer Dick Bartling, a native of Brookings, SD, toured full-time in the early to mid-80’s with three of the region’s most successful rock bands: Aaron Baron (SD Rock ‘n’ Roll Hall of Fame 2019), Pressure Point, and Ivory.  For the past 40+ years, he has performed and/or recorded with a diverse mix of national, regional, and local rock, jazz, and blues artists and bands.

evan jones

Keyboardist/Vocalist Evan Jones began playing piano at age 5 and was heavily influenced by the pop music he heard on AM radio throughout his youth.  Shadowfax was his first band in his early teens.  While in high school at Sioux Falls Washington, he was a founding member of Wakefield (SD Rock ‘n’ Roll Hall of Fame 2017).  The band went on to become one of the most popular regional rock acts of the 1980’s.  Other than Wakefield reunions, Evan took a 22 year break from music as he moved away from SD to pursue his Engineering career and raise his family.  He returned to the area in 2010 and began performing as a solo artist, which he continues along with the band JETT.

ben dee

Bassist/Vocalist Ben Dee was born in Wisconsin and moved to Mitchell, SD as a child.  He was drawn to bass at age 17 after growing up noticing the bass lines in pop and rock music on his Mom’s AM kitchen radio.  Onyx was his first band and they were later hired to be a new version of Flat Cat (SD Rock ‘n’ Roll Hall of Fame 2024) in the mid-80’s.  Ben played with Art vs. Money in the late 80’s and toured full-time with Good Times/Dustin Evans (SD Country Music Hall of Fame 2024) in the 90’s.  He later performed with The Rude Awakening and country guitarist/vocalist Jimmy Weber.

steve grimes

Guitarist/Vocalist Steve Grimes, born and raised in Sioux Falls, SD, began playing guitar in high school.  He gained experience playing rock, country, jazz, school variety shows, and pit orchestra for school musicals. Steve attended Musicians Institute in Hollywood, CA studying with Paul Gilbert (Mr. Big) and Jennifer Batten (Jeff Beck and Michael Jackson).  In addition to GPO, he is also a member of Sugardaddy (SD Rock ‘n’ Roll Hall of Fame 2024) and has previously performed with The Take, The Glory Holes, Goodroad, The Toby Kane Band, Brian Masek & Friends, and others.