Which New York venue hosted the Rock Hall's 25th anniversary concerts in 2009?

The New York venue that hosted the Rock Hall’s 25th anniversary concerts in 2009 was Madison Square Garden.

The concerts were staged on October 29 and 30, 2009, as a two-night celebration of the Rock and Roll Hall of Fame’s 25th anniversary. Madison Square Garden, in Manhattan, was chosen for its enormous capacity, cultural importance, and long association with landmark popular-music events.

The lineup brought together major Hall of Fame artists, including Bruce Springsteen, Stevie Wonder, Aretha Franklin, Metallica, U2, Simon & Garfunkel, Crosby, Stills & Nash, and Jeff Beck. Eric Clapton had originally been scheduled to appear but withdrew after surgery for gallstones; Beck performed in his place.

A common mix-up is confusing these concerts with the annual Rock Hall induction ceremony, which has been held at several venues and cities. The anniversary concerts were a separate event and took place specifically at Madison Square Garden.