Guitarist Tom Morello [ tickets ] and vocalist Zack de la Rocha, one half of soon-to-be-reunited rap-rock pioneers Rage Against the Machine, will share the stage in Chicago this Saturday (4/14).

The show--which takes place outside of Rock 'n' Roll McDonalds on 600 North Clark Street at 2:30 p.m. local time--is part of Morello's ongoing tour to drum up support for the debut album from his solo project, The Nightwatchman; titled "One Man Revolution," the disc is due out April 24. Morello is scheduled to perform an acoustic set during the event, after which de la Rocha will join him on stage.

The pair is appearing "in solidarity with the Coalition of Immokalee Workers in their struggle to earn a living wage," according to a press release. Additional information is posted at The Nightwatchman's website.

Rockers Flyleaf [ tickets ] have postponed a number of concerts so that lead singer Lacey Mosley can recover from "intense temporary throat damage," the group said in a message posted at its website.

The affected shows are: Friday (4/13) in Detroit; Saturday (4/14) in Cincinnati; Sunday (4/15) in Chicago; and Tuesday in Madison, WI. Make-up dates will be announced soon, and will take place later this year, according to the group's website. Meanwhile, the tour is currently scheduled to resume with an April 20 show in Minneapolis.

"When I went to the doctor she looked at my vocal chords and immediately started to reprimand me for the damage I had done," Mosley said in a letter to fans posted at Flyleaf's MySpace page. "'Didn't you know your voice was not well?' [the doctor asked me.] 'Yes, that's why I came here.' Appalled, she said, 'And still you continued to sing??' 'Its my job.' I said. And very matter of factly she stated, 'Not for long if you continue this way.' So I was ordered to be silent for five days."

The Police [ tickets ] were the most-requested concert act Ticketmaster users sought out during the first quarter of this year, according to data the company released this week. (Ticketmaster is LiveDaily's parent company.) The reunited trio topped a list of the 10 most-requested concert acts, which also includes in descending order: Kenny Chesney, Justin Timberlake, Bob Seger, Keith Urban, John Mayer, Gwen Stefani, Rod Stewart and Tool.

The most-requested ranking is based on "online page views, information requests and ticket sales through Ticketmaster sales channels," according to a press release.

The Tiger Woods Foundation has launched an online auction, through which fans can bid on items that include two tickets for seats within the first 10 rows to the Tiger Jam X concert. Scheduled to take place May 26 at Las Vegas' Mandalay Bay Events Center, the show will feature headliners Bon Jovi [ tickets ], along with fellow rockers Daughtry. Bidding is underway at the auction's website through April 25, according to a press release.