Forty-one years ago today, Prince released an album that would become a massive hit and change the music industry.

A custom purple sparkle baritone Telecaster guitar, made for guitarist Nancy Wilson, and a vintage 1966 Gibson EM-50 mandolin, which Paul Moak has played for more than 25 years.

The two performed a medley that combined Prince’s hits — 'Let’s Go Crazy,' 'Baby I’m a Star,' and 'Purple Rain' — with Beyoncé’s new single, 'Crazy in Love.'. Moments later, Prince ...