Hunter Hayes, Keith Urban Participate in 11th Annual St. Jude Thanks and Giving Campaign

Hunter Hayes and Keith Urban are joining more than a dozen celebrities for the 11th annual St. Jude Thanks and Giving campaign. The initiative unites celebrities, media, retail and corporate partners in encouraging donations to St. Jude Children's Research Hospital during the holiday season.

Hayes will join Lily Aldridge, Jennette McCurdy, Elisabeth Rohm, Ashley Tisdale, Michelle Williams and several others in recording radio spots and online videos, offering social media support, participating in the St. Jude Give Thanks Walk and more.

Urban designed a special holiday ornament, featuring one of his guitars, a 'St. Jude Rocks' design and his logo on the back. Model Daisy Fuentes crafted a charm necklace, and actress Olivia Holt created an iPhone case with the message "Keep your head up, keep your heart strong."

Other celebrities participating in the campaign include Jennifer Aniston, Michael Strahan, Jon Hamm, Sofia Vergara and many more.

“I am always so touched by the love and support our celebrity friends lend to our St. Jude Thanks and Giving program year after year,” says Marlo Thomas, national outreach director for St. Jude Children’s Research Hospital and co-creator of the Thanks and Giving campaign. "Beyond their time and talent, they bring their full hearts to this campaign -- and you can see that in the genuine warmth they share with the children.

"The awareness they bring to St. Jude is vital to our mission. Through these beloved stars, we are able to reach millions across the country each year," she adds, "and in doing so, we continue to receive amazing support, which allows us to keep my father’s founding promise that no family ever pays St. Jude for anything -- not for treatment, travel, housing or food. That’s because we believe all a family should worry about is helping their child live.”

To donate to the efforts of St. Jude Children's Research Hospital, which provides free medical care to children battling cancer and other life-threatening illnesses, click here.