Dierks Bentley got the surprise of a lifetime when he found out U2 covered one of his biggest hits during their show in Louisiana on Saturday! Dierks shared a video of the 'Drunk on a Plane' and 'Beautiful Day' mashup with the caption: âTrying to process⊠#U2 breaking into drunk on a plane last night. Canât make this up. #drunkonaplane #beautifulday.â