Oprah Winfrey was named the world's most powerful celebrity in June
US talk show host Oprah Winfrey has been named the most generous celebrity for the second year running, according to a charity's annual list.
The Giving Back Fund, a group that encourages philanthropy, said the star's charities spent $50.2m (£28m) in 2007 on health care and education.
Second place on the list was trumpeter and A&M records co-founder Herb Alpert, followed by singer Barbra Streisand.
Paul Newman was fourth and Mel Gibson rounded off the top five.
Winfrey, a former Bob Hope Humanitarian Award winner, was named the world's most powerful celebrity in June, by business magazine Forbes.
MOST GENEROUS STARS
1. Oprah Winfrey - $50.2m (£28m)
2. Herb Alpert - $13m (£7.2m)
3. Barbra Streisand - $11m (£6.1m)
4, Paul Newman - $10m (£5.6m)
5. Mel Gibson - $9.9m (£5.5m)
Source: The Giving Back Fund
In September last year, she also topped the list of highest-paid TV personalities.
According to the survey The Herb Alpert Foundation spent $13m (£7.2m) on education, including the UCLA Herb Alpert School of Music.
Last year Streisand donated $11m (£6.1m)
Around $10m (£5.6m) was given to the Scholarship Kenyon College by Newman.
Gibson gave $9.9m (£5.5m) to the Holy Family Church in Malibu, California.