
If One Direction played instruments, they might look a little something like these guys. The all-male quartet Well-Strung features classical musicians who put their own spin on Mozart, Beethoven, Lorde, Madonna, Gotye, U2, and more. The group, which is composed of first violinist Edmund Bagnell, second violinist Christopher Marchant, cellist Daniel Shevlin, and violist Trevor Wadleigh, has gained national and international attention for its unique blend of string-quartet-meets-boy-band. The foursome has played venues around the world, including the Leicester Square Theatre in London, the House of Blues in New Orleans, and Feinstein's in San Francisco. Available globally for corporate events, the group's fee starts at $7,500.

The professional touring and recording session musicians are die-hard Beatles fans and cover more than 80 of the iconic group's songs. (The act's name is an homage to John Lennon's band, the Quarrymen, which eventually evolved into the beloved Beatles.) During the Four Quarrymen's performances, guests are encouraged to join the band to sing along karaoke style. Available on the East and West Coasts, the Los Angeles-based band charges $10,000 per event; fee is negotiable.

Lavender Steel from New York-based entertainment company On the Move performs '90s hits as well as original tunes. The band's sing-along show includes two 40-minute sets, plus over-the-top '80s- and '90s-inpsired costumes, choreographed dancers, a Hula-Hoop act, and two stilt walkers who interact with the audience during the performance. The group performs domestically and internationally; pricing is available upon request.