Waco country singer Holly Tucker is adding a second verse to the song of Texas musicians helping in the aftermath of Hurricane Harvey, thanks to a donated guitar and the goodwill — and signatures — of more than two dozen musicians.

This month Tucker is raffling off a Martin acoustic guitar signed by 25 Texas musicians and performers with proceeds going to the Rebuild Texas Fund, which has raised approximately $92 million to date. Those wanting to participate can buy online raffle tickets, at $10 a ticket, at raffles.ticketprinting.com.

The country singer was one of scores of Texas musicians who performed benefits for reconstruction and recovery efforts in the weeks after Hurricane Harvey caused epochal flooding along the Texas Gulf Coast in late August.

She played a women’s GRIT (Girls Raised In Texas) fundraiser at Hank’s Texas Grill in McKinney, one of a series of Texas Music Flood concerts, but a fan’s Facebook message around that time gave her an idea for something more.

The fan wanted to contribute a new Martin guitar to help rebuilding efforts, suggesting that she sign it and put the guitar up for auction. Tucker, on the verge of a fall tour for her album “Steel,” thought she could add to that guitar’s appeal with even more signatures and her upcoming schedule had her opening for some pretty big Texas country names.

“It was perfect timing — I thought, it has to be a God thing,” she recalled. Armed with the donated guitar — “not just any $100 Walmart guitar,” she noted — and a pack of colored Sharpie pens, Holly took her Harvey support to the road, asking fellow performers if they’d sign her guitar for a good cause.

By the end of 2017, Tucker had 25 signatures from the likes of such performers as Kevin Fowler, Restless Heart, Koe Wetzel, Bri Bagwell, Justin Todd Herod, Sam Riggs and Zane Williams. Most were Texas country musicians, but Tucker also got rock guitarist Ted Nugent and country comedian Chad Prather to sign the Martin.

“Everybody along the way was super nice to do it,” she recalled. Tucker won’t be changing from her personal guitar, though: It’s the Nakaguchi guitar that country star Blake Shelton gave her in the fourth season of the national singing competition “The Voice” in 2013.

Raffle tickets for the “Martin Goes To Harvey” guitar and an accompanying commemorative photo album of the signees went on sale Dec. 29. The guitar drawing will take place Jan. 31.

The promotional video that Tucker recorded to promote “Martin Goes To Harvey” has had more than 40,000 views on Facebook, but response has been slow. Tucker hopes that some of the signing musicians will link their websites and social media sites to the raffle site and drive fan traffic there.

Tucker, the 2017 Texas Country Music Association female vocalist of the year, is starting her 2018 with a new strategy to expand her online base by releasing a single to Spotify each week for eight weeks.

Tribune-Herald entertainment editor