Thania Garcia Paul McCartney was joined by Dave Grohl and Bruce Springsteen for a special performance at Glastonbury Festival Saturday night. The event marked Grohl’s first public performance since the death of Foo Fighters’ drummer Taylor Hawkins on March 25.McCartney welcomed a cheerful Grohl onto the Glastonbury stage as “my friend, your hero,” to which Grohl replied: “Hi Paul, how are you?”Between songs, the two went back and forth on their admiration for each other with McCartney telling the crowd of roaring fans, “This guy flew in specially to do this.”“I swear, I would never miss being right here with you, right now,” said Grohl, after happily boasting that he’d made it to the England music festival after dealing with two canceled flights.