Las Vegas, May 18 (IANS): Singer Taylor Swift and Scottish DJ Calvin Harris have confirmed their relationship by kissing at the Billboard Music Awards.

The couple were seen sharing several romantic gestures at the Billboard Music Awards here on Sunday.

Harris kept one arm tucked behind Swift, and then the "Summer" hitmaker gave Swift a congratulatory smooch when she was announced as the winner of the coveted Top 200 Album award for her fifth studio album "1989", reports femalefirst.co.uk.

The kiss wasn't the only time the couple were seen getting close and personal during the ceremony, as they celebrated the slew of nine awards they won between them with other displays of affection, including Harris wrapping his arms around the 25-year-old singer.

Swift -- who wore a low-cut, white, Balmain jumpsuit to the event at the MGM Grand Garden Arena -- is rumoured to have started their relationship after meeting the hunk at a BRIT Awards after-party in London in February, and they were recently seen enjoying an intimate date in Los Angeles.

The "Bad Blood" singer is set to have a busy few months as she tours the US, and a source had revealed that she has factored time into her hectic schedule to see her beau.

"Their relationship isn't conveniently timed. She has gaps in her schedule, so she'll see him," the insider said.