Primarily found on the 7" and 12" singles for "Look At That Cadillac" and "(She's) Sexy + 17".

Features a blistering boogie-woogie solo by Geraint Watkins , a veteran of the rockabilly scene who played with Crazy Cavan.

Lee Rocker delivers a short, punctuating slap-bass break toward the end.

Critics from the Rockabilly Chronicle argue that while the A-side "Look At That Cadillac" was a "good if not original" jump-blues track, "Lucky Charm" was the of the release. It represents the band's ability to evolve past simple 1950s nostalgia into a tighter, more virtuosic unit that could stand toe-to-toe with any swing or jazz ensemble. Lucky Charm

Though it was a "hidden gem" on vinyl for years, "Lucky Charm" has become more accessible through later compilations:

Unlike their sparser early tracks, this song features a fuller sound with saxes and piano , likely recorded in the same sessions as its A-side.