During their You  Look Good World Tour, the members of Lady Antebellum have been singing “You’re Still the One,” which Shania Twain took to the top of the country charts in 1998. Two worlds collided when the international superstar went to see the trio in Toronto, Ontario during a stop on their tour, and the international superstar sang along (with Kelsea Ballerini and husband Fred) when Lady A performed her No. 1 song during the show. Check it out below.

https://twitter.com/ladyantebellum/status/882700313270132737