StubHub, the world’s largest ticket marketplace, is launching the Take Off Your Boots campaign to collect shoes for the charity Soles4Souls, and giving away tickets to the U2 360ˇ Tour to those who participate. StubHub, with the help of Hard Rock Cafe, is kicking off its series of events in Denver on Friday. At least 150 pairs of tickets to the May 21 U2 concert will be given away that day to those who donate. There is a limit of one pair of U2 tickets per person donating a pair of new or gently used shoes, while supplies last. Soles4Souls, a Nashville-based charity, collects shoes and distributes them to people in need. Since 2005, it has given more than 13 million pairs of new and gently worn shoes to people in over 125 countries. The event takes place from 3-6 p.m. at Hard Rock Cafe Denver, 500 16th Street Mall.

Memphis Mullen Due to arrive in Denver on 19th and will be attending the Hard Rock event. Catch up and grab a sticker from her -

Twitpic We are looking for some Denver fans to shoot, snap and post - U2TOURFANS.2011@twitpic.com

Under a Blood Red Sky  is an acclaimed U2 tribute band that passionately recreates authentic U2 concerts. Covering the War tour in 1983 to present day, each show has amazed fans with their ability to recreate famous U2 shows and has solidified their reputation for sold out venues - including the world-famous Red Rocks!

Billy Bunting had been a rabid U2 fan since he saw the band in New Haven, CT in 1981. Billy never forgot Bono climbing up to the balcony of this old theatre singing at the top of his lungs and thought, “I want to do that!” From that point forward, Billy immersed himself in U2 music and that event helped shape Billy as a singer. After 20+ years as professional musicians, Billy and Jerry Bousquet returned to their roots and formed UABRS. UABRS got its start by recreating the legendary 1983 “Live at Red Rocks” concert on New Year’s Eve 2005 at a sold out show at the Paramount Theater in Denver, CO. It went over huge!!! The fans were taken back to that foggy June 5th evening and ended the night by singing the refrain from “40” as the band left the stage. It was EXACTLY like Red Rocks and Billy “Bono”, Ted “The Tedge”, Todd “Adam” and Jerry “Larry” have never looked back – providing fans the best U2 experience this side of Dublin!!

Not only does UABRS play and sound like U2, their amazing attention to detail creates a visual experience that the most ardent U2 fan would recognize. UABRS makes every effort to replicate wardrobe, stage props, video/audio choreography, instruments and equipment from many famous U2 concerts around the world.

UABRS is the ONLY U2 tribute band to ever play Red Rocks amphitheater. Fans reminisced at the sold-out venue as the band recreated the ultimate U2 experience not seen or heard since June 1983. The music of U2 echoed off the walls of Red Rocks with over 9,000 fans chanting the lyrics of great U2 songs such as With or Without You, Pride (In the Name of Love), and Sunday Bloody Sunday.

Check out the show and this video -