Complex sentence: In the late 1940s, he had a hit on a jazzed-up version of "Loch Lomond", with the band billed as Tiny "Mac" Grimes and the Rocking Highlanders and appearing in kilts.
Split into simpler sentences: In the late 1940s, he had a hit on a jazzed up version of "Loch Lomond". His band was billed as Tiny "Mac" Grimes and the Rocking Highlanders and appeared in kilts.