1: Billy Joel's historic 100th MSG concert was filled with surprises and special guests.

2: Fans were treated to hits like "Piano Man" and "Uptown Girl" at the milestone show.

3: The Piano Man himself reflected on his career and the significance of the milestone.

4: Celebrity appearances from Bruce Springsteen and Paul McCartney made the night unforgettable.

5: Joel's daughter, Alexa Ray, joined him on stage for a special performance.

6: The concert marked another milestone in Joel's incredible career at MSG.

7: Fans were left in awe as Joel performed for over three hours straight.

8: Highlights included a tribute to the late Chester Bennington with a rendition of "In the End."

9: Billy Joel proved once again why he is the "Piano Man" with an unforgettable night at MSG.