Video: Olivia Newton-John sings "Waterloo" at Cardiff concert

Olivia Newton-John, currently on tour in the UK, incorporates a bit of ABBA's "Waterloo" into her concert in honor of her experience as Britain's entry in the 1974 Eurovision Song Contest. Olivia explains that she's quite proud to have been a runner-up to ABBA :)

Thanks to Nabil for the video!