50th Birthday Celebration Volume 5 is a live album of improvised music by Fred Frith and John Zorn documenting their performance at Tonic in September 2003 as part of Zorn's month-long 50th Birthday Celebration concert series.
The Allmusic review by Sean Westergaard awarded the album 4 stars stating "The interplay is simply amazing. Much of it is what you'd expect from free improv, but there are a handful of beautiful, lyrical moments, like those that close the set. Any fan of free improvisation will be thrilled. It doesn't get much better than this."