The recently-announced rock High Voltage Festival 2010 has just been expanded, with more acts joining headliners ZZ Top and Emerson, Lake and Palmer.

Anglo-Brit act Foreigner are to take to the main stage, with British prog-rock veterans Asia taking to the Prog stage along with Wishbone Ash and Uriah Heep. Joining them are "new school" progressive acts The Reasoning from Cardiff and Touchstone from Hertfordshire.

No dates have been released for any of these bands as yet, but ZZ Top take to the main stage on Saturday 24th July, ELP on Sunday 25th July 2010.

Tickets are on sale now, costing £65 for a day ticket, £120 for the weekend (+ booking fee).