It's a busy weekend at Penn's Peak with three concerts in three days, the finale being pop icon Engelbert Humperdinck.

The list of shows is as follows:• Friday Robin Trower with Scott Weis Band, 8 p.m. Tickets $27 advance, $32 day of show.• Saturday The Tubes with NightWind, 8 p.m. Tickets $18 advance, $23 day of show.• Sunday Engelbert Humperdinck, 7:30 p.m. Tickets $37 and $47.Engelbert was known not only for a long list of hits, but for his handsome appearance.The hits include "Release Me," "Lone Is the Man Without Love," "There Goes My Everything," and "After the Loving."This is Humperdinck's first appearance at Penn's Peak.His name comes from the 19th-century Austrian opera composer who wrote "Hansel & Gretel." His voice comes from heaven, and he has been a legend in the international music industry for the last 40-plus years, with over 150 million records sold.Humperdinck has recorded everything from the most romantic ballads to the platinum-selling theme song "Lesbian Seagull" for "Beavis and Butt-Head Do America." His remarkable voice and extraordinary talent have endeared him to millions of fans around the globe.The Robin Trower story started in the mid '60s when he began his recording career in the rhythm and blues band the Paramounts. But the first time Trower truly surfaced on rock 'n' roll's radar was in 1967, with Procol Harum house band of the Summer of Love. Though not on their megahit "A Whiter Shade of Pale," he completed five albums and many tours with them before breaking away for a solo career in 1971.He rates leaving "the best career decision I ever made," but admits that "the big break for me was Gary Brooker getting me to join Procol. That opened up the whole world. Without that I would never have been able to go on and do what I've done."The Tubes have made numerous Penn's Peak appearances and always draw large audiences. Their unique, humorous and sometimes satirical style has gained them a legion of fans.Their live shows sometimes involve mock bondage rituals, simulated sex, 12-foot-high rock stars by the name of Quay Lude singing "White Punks On Dope," exploding televisions, chainsaws and an array of semiclad dancers. Some say they were about 15 years ahead of Madonna, and light years ahead of the politically correct.