Today's warm-up acts are often tomorrow's headline bands. We've rounded up some support acts that we think are worth checking out this week...

AMPLIFIER'S second single, Neon, was released on Monday and their self-titled debut album is on its way in May.

This Manchester-based rock band have been delighting the music press and causing a stir with metal fans.

They've made their way onto Radio 1, XFM, 6 Music and Virgin and have recently had their own headline gigs in London.

Amplifier have been supporting Auf Der Maur and are now supporting Span, which brings them to the Wedgewood Rooms, Portsmouth, on Wednesday, April 21.

Box office: 023 9386 3911.

SOUTHAMPTON band Harsh have made a name for themselves in the area thanks to their regular live performances.

They are on stage on Thursday, April 22 at The Joiners' Arms in Southampton, supporting Cerebra alongside Side Project.

Box office: 023 8022 5612.