That night was also the Garden debut of opening act Sammy Hagar .

Sammy Hagar had a guitar stolen Theft backstage at the Cotton Bowl show ; it was returned Giving later that day .

Correction : Sammy 's guitar was stolen Theft from a previous Dallas show .

Was recovered Recovering and Sammy held Hold it until the Texxas Jam .

Sammy smashed Destroying the guitar onstage and threw Self_motion it into the crowd .

Notes : Sammy came Motion on right before Styx at the end .

Ted Nugent and Rik Emmett joined Becoming_a_member Sammy Hagar on stage in Dallas for their version of Led Zeppelin 's `` Rock `` n Roll . ''

Van Halen 's Sammy Hagar lost Earnings_and_losses his voice after only a couple of songs .

This song from 1984 had been the band 's only US Hot 100 number 1 , but in his attempt to 'forget ' the band 's past , Sammy Hagar had refused Agree_or_refuse_to_act to sing Perception_active it at every show when he joined Becoming_a_member the band in 1985 .