HERMAN making his first appearance before British fans for over two years. Amen corner showing they're worthy of two tours in as many months. Dave Berry digging into the rock era. And the Paper Dolls hitting everyone right between the eyes with a high-powered, fast-moving, sex-packed stage act.     Such was the scene at Slough on Sunday - third date of this interesting tour. Major disappointment was the non-appearance of John Rowles, taken ill at the last minute.     Everything was good, but it was the Paper Dolls who kept their promise to pack the show with surprises. They arrived onstage in long white satin cloaks which they cast off to reveal what can only be described as binkini-type mini-dresses - Tiger in white sequins, Copper and Spyder in gold.     Tiger sang her heart out through "Simon Says," "Darlin," "Yakety Yak" and "Houseparty," slowing the pace a bit for "Will You Still Love Me Tomorrow" and all the time moving and dancing with almost alarming enthusiasm.

Amen Corner - they recently returned from a tour with Pitney and Partridge - provided some excellent soul sounds mixing their "Gin House" and "Bend Me, Shape Me" hits with favourites like "Shake a Tail Feather" and ""Sweet Soul Music." Andy Fairweather Low has a very distinctive voice, unfortunately drowned a bit by the Amen brass.     Slinky Dave Berry deserves a lot more recognition. He's consistently good.     You find yourself near-hypnotised by his weird, lazy movements and that mournful voice. He did some nice things to Buddy Holly's "Maybe Baby" and "Peggy Sue" and should get a hit with the Honeybus' "Do I Still Figure In Your Life."     Herman wasn't sure if he was still popular in this country. He thought his hand-clapping toothy grin days were over. They are - but he and the Hermits - so loud at times that you could feel the floor vibrating - showed enormous versatility for hits by the Bee Gees ("New York Mining Disaster"), Honeybus' ("I Can't Let Maggie Go"), and the Impressions ("It's All Right"), while including hits like "Hush," "Milk" and "Sleepy Joe."

THE Who's first major tour of America has now been confirmed. They will co-star with Herman's Hermits in a six-week schedule of one-nighters, commencing the third week in July. As reported last week, the Who visit America for three days in mid-June to appear at the Monterey International Pop Festival.     This sunday the group begins a seven-day tour of Scandinavia with a concert in Helsinki. They fly to Brussels on May 20 for a TV appearance, and are also set for a four-day Irish tour from June 1.     Dates for the Who in this country are Bognor shoreline Hotel (May 13), Oxford Pembroke College (27th), Douglas Palace (June 10), Cambridge Christ's College (12th) and University of Sussex (16th).     The group's first L.P. on the Track label is now likely to be released late in June.