The members of Rascal Flatts support St. Jude Children's Research Hospital, and now you can help them.

The trio have signed the Teflon black electric guitar pictured above with a silver Sharpie, and our partner site, Taste of Country, is offering fans the chance to bid on it during a two-day online auction, with all proceeds going to St. Jude.

The bidding is already underway at the link below, and will end at 6PM ET on Friday, March 7, 2014.

St. Jude Children’s Research Hospital is famous all over the world for breakthroughs in treating cancer and other life threatening illnesses. As part of their service, no family ever pays for anything related to treatment, travel, housing or food during their stay at the facility.

For the last quarter of a century, country radio, record labels and artists have helped raise more than $500 million for St. Jude.

You can help them continue the fight by bidding on the guitar using the button below.