An All-Star game that counts

ESPN Stats & Info did some digging and discovered that there are 13 current and former NBA All-Stars on the rosters of the Heat and Celtics. Those players have combined for 75 All-Star selections.

The list looks like this:

Shaquille O'Neal (BOS): 15

Kevin Garnett (BOS): 13

Ray Allen (BOS): 9

Paul Pierce (BOS): 8

LeBron James (MIA): 6

Jermaine O'Neal (BOS): 6

Dwyane Wade (MIA): 6

Chris Bosh (MIA): 5

Zydrunas Ilgauskas (MIA): 2

Jerry Stackhouse (MIA): 2

Juwan Howard (MIA): 1

Jamaal Magloire (MIA): 1

Rajon Rondo (BOS): 1

The last time at least 13 players who each appeared in an All-Star Game played in the same regular season game?

Try January 29, 1969, when the Philadelphia 76ers beat the St. Louis Hawks.