Mostly Harmless is a five-piece rock cover band delivering fun, danceable rock and roll to events throughout Philadelphia suburbs.  Formed in 2022, the band came together when three co-workers joined forces with two new friends from the local music scene. United by their love of energetic, crowd-pleasing rock, they live for the moment the crowd starts moving and doesn’t stop!

With over 100 songs in rotation, our high-energy setlist spans decades – from The Beatles to The Foo Fighters – delivered with tight musicianship and rapid-fire transitions that keep the party going!


Booking Info.

Specializing in high-energy sets for bars & restaurants, fundraisers, private parties, and corporate events. Weddings? Only if it’s casual and ready to rock.

Service Area

Based in Hatfield, PA • Travel up to 1 hour across Montgomery, Bucks, and neighboring counties.

Technical Info

• Full sound + lighting provided
• 3 – 4 hour shows (3 sets)
• Compact setup available
• Background music available between sets

Our Music

Our setlist is scientifically selected by AI to ensure maximum groove…
Nah… Actually, we just play stuff we like. But we’ll definitely keep you singing, dancing and smiling all night long!

Fun. Danceable. Rock and Roll.
That really says it all…

Check out our Song List


Join Us

Come out and party with us.
Join our mailing list and we’ll keep you
up to date on upcoming gigs and news!


Social Media

Like us on Facebook.
Follow us on Instagram.
You’ll stay up to date on all of our news
(and we’ll really appreciate it)