Chart Flashback

10. ''Walking on Sunshine''
Katrina & the Waves

Has any other '80s one-hit-wonder gotten more play in romantic-comedy theatrical trailers than this impossibly peppy lady with the men's blazers and plump shoulder padding? Nope, and for good reason: With its Motown-style bounce and horn-laden shine, few songs radiate such an effortlessly sunny-side-up disposition. A-