Sound like Andy Williams, you never really see the male singer close up singing, so this can be a lip-synced.
Erika Davies sings 'Just Wanted You To Know' on the Vistaprint Christmas commercial.
Pomplamoose...
The Who - Join Together =)
Santa.
Erika Davies
Raveonettes
Pomplamoose
Busta Rhymes
Usher
Cyndi Lauper
Harry Connick Jr.
sting