Backstreet Boys Shout Out Max Martin in Vegas Residency Crowd: ‘He Helped Us Create Our Legacy’

https://www.billboard.com/music/music-news/backstreet-boys-sphere-las-vegas-show-max-martin-songs-1236045947 The Backstreet Boys welcomed a very special guest to their Las Vegas residency Saturday, shouting out longtime collaborator Max Martin in the crowd.