Does shaman haste stack with haste items?

[Bardp1999]

You guys are really over-explaining this. While technically the shitty Bard over haste works on P99, it doesn't really apply to 99.9% of situations.

You have worn haste and spell/song haste. Worn haste doesnt stack, and spell haste doesnt stack, you get one of each and thats it.