Milestones: U2 played historic Red Rocks gig 30 years ago today — watch ‘I Will Follow’

Thirty years ago tonight, U2 braved a cold Colorado rainstorm to perform at the fabled Red Rocks Amphitheatre just west of Denver, a concert on the band’s War tour that was filmed and released on video as “Under a Blood Red Sky,” cementing Bono and Co.’s reputation as live act.