Fans among the audience were shown a video of the country star singing the classic "I Will Always Love You" before Grande hit the stage.

20th May 1977: Country music queen Dolly Parton is back in London after performing at the King's Theatre, Glasgow, at a Scottish Royal Jubilee Television Special in the presence of the Queen, she now commences on a tour of Britain and the continent. (Photo by Keystone/Getty Images)

Courtesy of Keystone/Getty Images

Ariana Grande honored the late Dolly Parton with a poignant pre-show tribute during her Eternal Sunshine Tour stop in London.

Before Grande took the stage at the O2 arena, concertgoers were shown a video of the country star singing the classic “I Will Always Love You.” The clip played as a memorial tribute to the country music icon, who died Tuesday at age 80, allowing fans gathered inside the arena to remember the legendary singer/songwriter before the evening’s main event began.