AC/DC Bassist Cliff Williams Takes His Final Bow: Watch

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Cliff Williams performs with AC/DC at the Toyota Center on Feb. 26, 2016 in Houston.

Hours after AC/DC bassist Cliff Williams formally announced his retirement on Tuesday, the 66-year-old rocker took his final bow as the band wrapped its Rock or Bust World Tour in Philadelphia. 

AC/DC Bassist Cliff Williams Confirms Retirement: 'It's Time for Me to Step Out'

Capping off nearly 40 years with the legendary band, founding guitarist Angus Young and stand-in singer Axl Rose both gave Williams props during their closing number "For Those About to Rock (We Salute You)."

"Ladies and gentlemen, Mr. Cliff Williams," Rose told the audience at the song's end. Then Young walked his longtime bandmate forward to the front of the stage to take one last bow.

AC/DC Bassist Cliff Williams to Retire After Current Tour

Earlier Tuesday, Williams had announced he would be retiring in a video where he told fans, "It's just my time, I'm happy I just need family time, just chill out and not do this."