What happened today in Music History... 

April 30

1977 – On this day, Led Zeppelin played the Pontiac Silverdome in Michigan to a crowd of over 76,000 fans, breaking the record for the largest indoor concert attendance at the time. The show was part of their final North American tour and cemented their status as rock's biggest live act of the decade.

1983 – Michael Jackson scored another No. 1 single with "Beat It," featuring a blistering guitar solo by Eddie Van Halen. The track blended rock and pop in a groundbreaking way and helped Thriller become the best-selling album of all time.

1988 – After an incredible 741 consecutive weeks on the Billboard 200, Pink Floyd's The Dark Side of the Moon finally dropped off the chart. The record for longest-charting album remains one of the most impressive feats in music history.

1991 – Nirvana signed with DGC (Geffen) Records, setting the stage for the release of Nevermind later that year. The album would launch grunge into the mainstream and change the sound of rock for the next decade.