There are multiple artists using the name Jonesy:
1) An early 70's progressive rock band
2) A Norwegian rapper 1)
Jonesy were an early 70's band in the style of King Crimson but with the unusual element of electric trumpet from Alan Bown. Other band members were John Evan-Jones - guitar & backing vocals, Jamie Kaleth - lead vocals & keyboards (including some excellent Mellotron), Gypsy Jones - lead vocals, bass guitar & recorders and Plug Thomas - percussion and backing vocals.

Read more about Jonesy on Last.fm.