Check out the Harp Twins music videos on their website. A bit of Celtic flare and popular music. Oh, and #StarTrek, #LordofRings, #StarWars and other fun stuff. They're identical twins, and some of the videos also feature a pair of identical twin musicians, Volfgang Twins, who I think are from Germany.
The costumes are amazing.

https://www.harptwins.com/