BEVERLY HILLS, 90210 and DWTS alum JENNIE GARTH is making beautiful music with the new man in her life – Big Gigantic drummer Jeremy Salken!

And insiders say she’s so smitten with the rocker she’s even following the band on the road.

The 40-year-old mom of three girls was crushed last year when her second hus­band, “Twilight” star Peter Facinelli, 39, ran off with 28-year-old “Thor” cutie Jaimie Al­exander. But her new romance with Jeremy is giving her reason to smile again, say sources.

The two were spot­ted together at a Dec. 28 concert in Hampton, Va., where an eyewitness says they were “all over each other” while watching another act perform. When Big Gigantic took the stage, Jennie was “as excited as a teenybopper, clapping and jump­ing up and down with the music. No question they’re a couple – and it looks really serious.”

Jennie – whose first husband was also a drummer – and Salken, 41, met over a year ago at the Coachella Music Festival in Indio, Calif. But the two re­mained “just friends” until her 11-year marriage collapsed in March. When Big Gigantic played the House of Blues in Los Angeles on Oct. 5, the two hooked up again, and they’ve been a cou­ple ever since, says a source.

In the January issue of “Health” magazine, Jen­nie explained how her attitude about dating had evolved.

“Looks aren’t impor­tant to me anymore,” she said. “I like positive energy.”

But it seems like Jennie is getting both good looks AND positive energy with the handsome musician.

Another source said: “Jennie told me, ‘I never thought I’d fall in love again, but it’s happening, and I couldn’t be more excited!’”