Miley Cyrus will land her second No. 1 album on The Billboard 200 tomorrow (July 30), as "Breakout" bows with 371,000 U.S. copies, according to Nielsen SoundScan. That's the second-biggest sales week of the year for a female artist, following the 463,000 debut of Mariah Carey's "E=MC2".

Cyrus' last album, the half soundtrack, half studio set "Hannah Montana 2/Meet Miley Cyrus" (Hollywood/Walt Disney), started at No. 1 last summer with 326,000.

The first "Hanna Montana" soundtrack, which launched her recording career, also bowed at No. 1 in 2006, with first-week sales of 281,000. It went on to be the best seller of that year's fourth quarter with less than three months of shelf life.

Debuting in the runner-up slot on The Billboard 200 is country duo Sugarland with the deluxe version of "Love on the Inside" (314,000). It's easily the Mercury Nashville act's best sales week and highest charting album ever. The band's previous high came with 2006's "Enjoy the Ride," which debuted and peaked at No. 4 with 211,000.

Sugarland also enjoys the best sales week for any country act since the Eagles' "Long Road Out of Eden" (ERC) shifted 359,000 in its second week of release last fall.

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