For the second year in a row, Taylor Swift tops's list of the most charitable celebrities. Blake Shelton and Carrie Underwood also made the organization's 2013 list of the Top 20 Celebs Gone Good.

A contributing factor to Swift's No. 1 ranking is the $100,000 she donated to help save the Nashville Symphony, which was under the threat of bankruptcy. She also headlined an event for Centerpoint, which helps young people experiencing homelessness.

Underwood was listed at No. 10 for her $1 million donation to the Red Cross, taken from proceeds from her Blown Away Tour, after her home state of Oklahoma was ravaged by tornadoes early this year.

Shelton's No. 16 ranking is also related to the Oklahoma tornadoes -- he helped raise over $6 million for relief efforts with his Healing in the Heartland: Relief Benefit and Concert after Moore, Okla., was devastated in the disaster.

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