Artists expected to be confirmed next month.

As initially speculated last month, Lollapalooza will return to Chicago's Grant Park as a three-day event in 2006. Organizers Capitol Sports & Entertainment confirmed that the one-time touring festival is not only growing in length, but in size as well, taking over more of the park to house eight stages that will present as many as 130 acts.

The Lollapalooza Web site confirms the dates and location for the show, but confirmation of participating artists and ticket information isn't expected to emerge for about a month.

Of course, that that hasn't stopped the rumor mill from churning. As previously reported, a reunion of the Windy City's own Smashing Pumpkins is among the most persistent rumors, while the likes of the Flaming Lips and Disco Biscuits also the focus of speculation. Members of Thievery Corporation recently told Billboard.com that the group would be on hand for year's festival.

Despite oppressive heat, more than 30,000 attended each day of last year's two-day Lollapalooza in Grant Park. It was the first stationary event in the festival's history, which stretches back to the first tour in 1991, the brainchild of Jane's Addiction's Perry Farrell.

Organizers expect as many as 225,000 to attend the 2006 version of the festival.