Emily Blunt Pitches an Unusual Song for Prince Harry and Meghan Markle’s Royal Wedding (Exclusive)

The actress and her ‘Sherlock Gnomes’ co-star James McAvoy have some ideas for the upcoming royal wedding: “Pitch it to Meghan Markle.”

James McAvoy and Emily Blunt are back as Gnomeo and Juliet in the new animated film Sherlock Gnomes, and one of the perks is working with Sir Elton John, who is an executive producer and composed original songs for the movie’s soundtrack.

“He's really cool,” Blunt told ET’s Carly Steel at the Sherlock Gnomes junket on Wednesday. “He's so warm and gregarious and cool.”

Earlier this year, John announced plans to retire at the conclusion of an extensive, years-long farewell tour that will visit "every continent in the world." However, he recently rescheduled several tour dates planned for the weekend of Prince Harry’s wedding to Meghan Markle, leading many to speculate that the “Candle in the Wind” crooner may be performing at the royal nuptials.

While McAvoy and Blunt couldn’t confirm or deny the singer’s rumored involvement in the festivities, they did joke about performing at the wedding themselves -- “Pitch it to Meghan Markle!” -- before speculating on which songs they’d like to see the royal family groove to at the royal reception.

“Benny and the Jets,” Blunt proposed, while McAvoy got a good laugh about watching the queen rock out to “Saturday Night's Alright for Fighting.”

“That would be pretty awesome, just to see,” Blunt marveled.

“Especially if the wedding was on a Saturday, that would be awesome,” McAvoy added. “Just kickin’ off at the reception.”

It remains to be seen what performers will get the special invitation to perform at Harry and Meghan’s nuptials on May 19, but the pair recently decided on their wedding cake! On Tuesday, Kensington Palace announced that pastry chef Claire Ptak will be baking a lemon elderflower cake "covered with buttercream and decorated with fresh flowers" for the couple.

See more on the upcoming royal wedding in the video below!