Bill Clinton and Hillary Clinton attend Christina Aguilera concert at New York city

Former United States president Bill Cilton and his wife, Hillary Clinton went on a date night to Christina Aguilera's concert.

The former first couple was spotted supporting their close friend at her performance in New York City. Their fans went berserk over the surprise sighting, but oddly enough, the Clintons and Christina were not there for long, reported E!Online.

A fan took to Instagram and uploaded a picture of the couple enjoying the concert. She wrote, " I'M SITTING RIGHT NEAR HILLARY AND BILL!!!!! #hillaryclinton #president #concert."

Hillary and Christina have been friends for a long time. The 'Liberation' singer has performed at various events for the Clintons over the years and even hosted a star-studded fundraising event for Hillary when she was campaigning to become president in 2015.

-ANI