Chart Beat now offers a sneak peak at chart action with a first-look edition on Wednesdays. On Thursdays, when all of our online charts are refreshed with the latest data, Chart Beat appears as always in its full form, spotlighting achievements from among our entire menu of charts.

MODERN ROCK GOES GREEN: Green Day notches its ninth Modern Rock No. 1, as "Know Your Enemy" rockets 8-1 in its second chart week. The song is the trio's first front-runner since "Holiday" rose to the top exactly four years ago this week.

Here is a look at Green Day's nine Modern Rock No. 1s and their weeks spent at the summit:

"Longview," one, 1994
"Basket Case," five, 1994
"When I Come Around," seven, 1995
"J.A.R.," one, 1995
"Minority," five," 2000
"American Idiot," six, 2004
"Boulevard of Broken Dreams," 16, 2004-05
"Holiday," three, 2005
"Know Your Enemy," one (to date), 2009

Green Day's latest coronation breaks a tie with U2 for second-most leaders in the chart's 20-year history. Only Red Hot Chili Peppers have more No. 1s, having tallied 11 between 1991 and 2007.

While Green Day has been a format cornerstone for 15 years, the two-week rise of "Know Your Enemy" marks its fastest ascent to the top. The group had previously reached No. 1 in as quickly as four weeks with "Minority" in 2000.

All in all, it's a strong way to set up the release of "21st Century Breakdown," due May 15. Green Day's last studio set, "American Idiot," became its first No. 1 on the Billboard 200 in October 2004 and has sold 5.8 million copies to date, according to Nielsen SoundScan.

The Triple A airplay chart boasts its own new leader, as Dave Matthews Band charges 7-1 in its second week with "Funny the Way It Is," the group's eighth topper dating to the list's 1996 inception.

Like Green Day at Modern Rock, DMB possesses a similar dazzling No. 1 history at Triple A:

"Too Much," one week at No. 1, 1996
"Don't Drink the Water," one, 1998
"Stay (Wasting Time)," seven, 1998
"I Did It," five, 2001
"The Space Between," one, 2001
"Everyday," eight, 2001-02
"Where Are You Going," seven, 2002
"Funny the Way It Is," one (to date), 2009

The quartet snaps a tie with Coldplay, Counting Crows, Sheryl Crow and R.E.M. for second-most format No. 1s. U2 leads with 10 front-runners.

In between DMB's two most recent No. 1s, its namesake leader collected two solo chart champs. Dave Matthews reigned with "Save Me" and "Oh" in 2004.

Following an eight-week reign with "Spotlight" last fall, Jennifer Hudson lands her second Adult R&B leader, as "If This Isn't Love" lifts 2-1. Hudson is one of six female artists to earn at least two consecutive No. 1s dating to the chart's 1993 launch. She joins Anita Baker, Toni Braxton, Heather Headley, Whitney Houston and Alicia Keys.

'DIAMONDS' SHINES: On the Adult Top 40 airplay chart, Rob Thomas' "Her Diamonds" sparkles with a No. 27 debut, matching Nickelback's "If Today Was Your Last Day" for the format's best bow this year. It's the first single from Thomas' second solo album, "cradlesong," due June 30. His first effort, the Billboard 200 No. 1 "...Something to Be," produced four Adult Top 40 hits from 2005 to 2007: "Lonely No More" (No. 1), "This Is How a Heart Breaks" (No. 3), "Ever the Same" (No. 2) and "Streetcorner Symphony" (No. 5).

He had last appeared with the No. 5-peaking "Little Wonders" two years ago. As a guest on Santana's "Smooth," which Thomas wrote and sang, the Matchbox Twenty frontman spent a format-record 25 weeks at No. 1 in 1999-2000.

COMPLETE BEAT: Check back tomorrow when we run down feats from among all our charts, including the Billboard Hot 100, where Dave Matthews Band will soar in, thanks to a strong first week of digital sales for "Funny the Way It Is."

We'll also spotlight a happy coincidence on the Billboard 200: two acts long at the forefront of danceable alternapop - Depeche Mode and Pet Shop Boys - each notch their highest-charting sets since 1993.