I love the song, and I thought it would be funny!
No, that's not all that's in this section. I'm going to list all of the instances of the number popping up, just for fun. The appearances of Jenny's number are as follows:
01) "CHANGES" PART 1: "THE ULTIMATE GAME MASTER"
The access code to the Sun Stone in the Palace is 8675309.
02) "CHANGES" PART 4: "THE SECOND SIEGE"
The Palace of Power's phone number is 867-5309.
03) "PAK" PART 4: "SHOWDOWN"
Simon's preferred customer number at Mini-Weapons, Incorporated, is 8675309. Matt Slater was the one that wrote it in, not me.
04) "ROGUE SQUADRON" PART 4
The arming code for a bomb is 8675309. Matt Slater was the one that wrote it in, not me.
The number of credits in Kevin's account is 8,675,309.