Grande met actor Graham Phillips in the cast of the musical 13 in 2008 and dated him until December 2011, and Australian YouTube comedian Jai Brooks from August 2012 to July 2013.She subsequently dated The Wanted member Nathan Sykes from August to December 2013. In May 2014, she rekindled her relationship with Brooks though they separated again after three months of dating. Grande was involved with rapper Big Sean in a relationship which ended in April 2015 after eight months of dating. At the age of ten Grande co-founded the South Florida youth singing group Kids Who Care, which performed for charitable fund-raising events and raised over $500,000 for charities in 2007 alone. In the summer of 2009, as a member of the charitable organization Broadway in South Africa, Grande, along with her brother Frankie, performed and taught music and dance to children in Gugulethu, South Africa.After watching Blackfish, she urged fans to stop supporting SeaWorld and has become a vegan. She was featured, along with Bridgit Mendler and Kat Graham, in Seventeen magazine in a March 2013 public campaign to end online bullying called "Delete Digital Drama". In September 2014, Grande participated at the charitable Stand Up to Cancer television program, performing the title track "My Everything" in dedication to her grandfather, who had died from cancer in July. Grande, who has adopted several rescue dogs as pets, promoted pet adoption and paid the adoption fees of 35 rescue dogs in connection with her concerts at Madison Square Garden in New York City and American Airlines Arena in Miami in March 2015. In 2016, she launched, with MAC Cosmetics, a line of lip shades called "Ariana Grande's MAC Viva Glam". All of the profits will benefit people affected by HIV and AIDS. A few of her works, such as the songs "Break Your Heart Right Back" and "Break Free" also touch upon LGBT themes. In May 2015, Grande and Miley Cyrus performed a cover of Crowded House's "Don't Dream It's Over" to raise awareness for Cyrus's Happy Hippie Foundation, which helps homeless and LGBT youths. The song was part of Cyrus's series of "Backyard Sessions" collaborations.In June 2015, Grande headlined the Dance On the Pier event, part of the LGBT Pride Week in New York City, giving "one of the best performances the event has ever seen."