Today's edition features news and tour information about Natasha Bedingfield [ tickets ], Stevie Nicks [ tickets ], Lyle Lovett [ tickets ] and Nine Inch Nails [ tickets ]. We'll also list off the albums that make up the Top 5 on this week's chart.

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Brit-pop singer Natasha Bedingfield will lead the lineup for the upcoming Verizon VIP Tour, which also features special guests Kate Voegele [ tickets ] and The Veronicas [ tickets ]. The US outing is set to kick off May 21 in Myrtle Beach, SC, and visit venues from coast to coast through mid-July.

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Stevie Nicks continues to the fill the month of June with tour dates around the eastern half of the US. The Grammy-winning singer, who launched the spring and summer touring season last weekend with a couple of arena shows on the East Coast, will return to the road June 5 with a performance in Biloxi, MS, and, so far, has 15 concerts lined up.

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Lyle Lovett has mapped out an extensive summer tour that will see him headlining venues across the US from late June through mid-August. The run, which kicks off June 24 in Westbury, NY, will visit US cities from coast to coast. Following his eight-week outing, Lovett will hook up with John Hiatt for a string of acoustic performances in September and October.

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Free agency apparently agrees with Nine Inch Nails mastermind Trent Reznor, who recently parted with his record label and has since been dishing out a voluminous amount of material, the latest installment of which surfaced Tuesday in the form of a new single titled "Discipline." The cut is available for free from the group's website, nin.com, and the MP3 file contains a note advising fans to return to the site on May 5.

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Mariah Carey [ tickets ]'s "E=MC2" sold 463,000 copies during its first week in stores, plenty to give the singer her sixth No. 1 album. That total also marks the best debut-week performance for any album to date so far this year, topping Jack Johnson's "Sleep Through the Static," which sold 375,000 copies its first week out.

Meanwhile, down one notch to No. 2 this week is Leona Lewis [ tickets ]' "Spirit," while Miley Cyrus [ tickets ]' "Hannah Montana [ tickets ]/Miley Cyrus: The Best of Both Worlds Concert," which was a Wal-Mart exclusive until last week, rockets from No. 31 to No. 3 on The Billboard 200. Lady Antebellum enters the chat at No. 4 with its self-titled debut, and the "NOW 27" hits compilation rounds out the Top 5.