...is track #6, "We Meet Again (Theme From 'Jerry Maguire')" by Nancy Wilson.
(I noticed someone posted a review asking about the "I know the language of your laugh" lyric, so I thought I'd post a quick review and the answer to that question)
K, here's my quick review: "We Meet Again" is a great song on a decent soundtrack. The consensus here seems to be that a lot of great songs were left out, and I agree. A music CD has a max capacity of 74 minutes --- too little time for the JM soundtrack considering there are enough great tunes in the movie for a double album soundtrack (like Forrest Gump). You could almost argue Cameron Crowe does too good a job at soundtracking his movies...
Anyway, it's a good soundtrack and well worth your money.