Saturday's rainy bill at Washington's Falconi Field starred two mainstream country bands that are nearly mirror reflections of the other.

	John Russell/Associated Press Lonestar -- Dean Sams, left, Richie McDonald, Keech Rainwater and Michael Britt -- shared the bill with Diamond Rio and Taylor Swift Saturday night at Falconi Field in Washington, Pa. Click photo for larger image.

From singer Richie McDonald's "My Front Porch Looking In," through Marc Cohn's perpetual crowd-pleaser "Walking in Memphis," to McDonald's most recent co-written hit, "Mr. Mom," Lonestar kept the soggy crowd of about 5,000 on its feet. And no surprise, they showcased their newest single, Danny Orton and Jennifer Schott's "Mountains," from an album to be released in November.

Diamond Rio knew which hits from two "best of" collections to throw at the appreciative crowd. Familiar takes on "I Believe," "Meet in the Middle" and "Beautiful Mess" led to the introduction of a fun new song, "Red Neck Love Gone Bad," which singer Marty Roe said was inspired by a former flame from Canonsburg.

The clouds let loose over The PovertyNeck Hillbillies, but the crowd wasn't too wet to stand, sing along with every song and add the hand motions to "Hillbilly State of Mind." Back in town during a cross-country blitz, the Rust Records artists brought along new manager Frank DiLeo, a former Epic Records VP who managed Michael Jackson at the height of his career.

Curiously, the biggest buzz of the night was reserved for a 16-year-old newbie who caught the crowd's attention with a surprisingly professional 20-minute opening set. Backed by a five-piece band, Taylor Swift performed like a seasoned pro on sharply hooked self-written songs that throbbed with all the passion of a high schooler's private diary.

Her song "Tim McGraw," which has received local airplay, generated applause. And Swift, a MySpace networking phenomenon, also got fans to sing along with as-yet-unreleased album cuts from her Big Machine Records debut, which comes out next month.

After her set, crowds of young fans ignored the headliners and surrounded Swift at two signing booths.