His old WWE theme was performed by Endeverafter. Jeff's TNA theme's all feature Jeff himself on vocals.
endeverafter is the band that sings Jeff hardys 2008 entrance theme
Jeff Hardys newest theme song was sung by the band of Endeverafter " No More Words"<Title
endeverafter sings wwe star Jeff hardys theme no more words
No More Words sung by EverandAfter
it calls modest
Jeff Hardys theme song is currently "No More Words" by Endeverafter
As of February 2011, it is Another by Jeff Hardy and Dale Oliver
Jeff Hardy Theme Song sounds like he sings it himself but it is not him. The singers of No More Words are called End-Ever-After!
Try www.wwe.com. They have some mobile downloads there.
No More Words by Endeverafter