Hey there,
About five minutes ago I was wondering the same thing as you. The song is Summer's Gonna Be My Girl by The Go. Once I found the commercial on YouTube, the comments had the answer.
Summer's gonna be my girl by The Go
No, the Pogues do not sing the Subaru commercial song. The song for the Subaru commercial is called "I Will Wait" and it is performed by the band Mumford & Sons.
The red-headed actor in the Subaru commercial is Matthew Perry.
The actress in the Subaru Lost Sunglasses commercial is Gillian Vigman.
The pogues
Same actress does a Crohn's disease commercial
Kandis Erickson
Justin Hines
Cut the cord
Lanna Lyons
Sean Hayes "powerful stuff"
Suzi Killman