The jewellery line was designed in collaboration with bosses at men's accessories and pocket knife firm William Henry, and sales of each of the three hand-engraved metal picks will benefit Camp Southern Ground, the group's charity summer camp in Georgia.

The pendants don't come cheap - the sterling silver charm with gold inlay features a sterling and onyx chain for $1,499 (£937), while another silver pick with an antique sterling silver chain is priced at $299 (£187) and a bronze charm with deerskin cord retails at $199 (£124).

It's the second venture the Zac Brown Band have embarked upon with William Henry designers - they previously teamed up to make guitar-inspired pocket knives.