Taylor Swift dated American dream, chastity-vowed Jonas Brother, Joe in 2008. He famously dumped her via phone, which Taylor blasted in as many interviews as possible, saying the kamikaze call “was like, a record, I think, for how quick. I looked at the call log - it was like 27 seconds." Ouch.
Swiftness: Three months
Song? Forever and Always – “I hold onto the night, you looked me in the eye and told me you loved me. Were you just kidding?”