The song in the new Ford Fiesta adverts

[dopeycatz]

What is the name of the song in the new Ford Fiesta advert? It's on TV now and its the one where there's a guy inside relaxing and outside, some people are picking up their friend (girl in cropped red top) in their car and the boot is filled with CDs. I love the song so, a little help?

[mopoke]

Smashmouth - Walking on the Sun