He's the one member who appears to have quite a few AKAs. Maybe we should start a Boomboxery Database to track them!
Here are the ones that I have found:
boom shaka loolu
boom shaka
boom shakalooboo
boom shabu
boom shaboo
Lak Shak Boom Rak
Shaka Laka Boom Boom
boom shakolako
boom boom laka
BSL
Here are the ones that I have found:
boom shaka loolu
boom shaka
boom shakalooboo
boom shabu
boom shaboo
Lak Shak Boom Rak
Shaka Laka Boom Boom
boom shakolako
boom boom laka
BSL