Jimmydorsey

3 clues
One of two bandleader siblings
Big-band leader known for "I'm Glad There Is You": 2 wds.
Big band leader, born 2/29/1904, whose brother Tommy also led bands
Similar answers:
Arnolddorsey
Dorsey
Dorseybrothers
Dorseyprizes
Dorseys
Endorsey
Jimmy
Jimmyandlillian
Jimmybuffett
Jimmybutler
Jimmycarter
Jimmychoochoo
Jimmyconnors
Jimmycrackcorn
Jimmycrater
Jimmydean
Jimmydickens
Jimmydorsey
Jimmyeatworld
Jimmyfalcon