Published Friday, 15 June 2012
The R&B superstar debuted the ballad, titled Bring It on Home, on Thursday as she performed at a special fundraiser for the Democrat at New York's Plaza Hotel.
Carey, who also backed Obama in the 2008 election, took to her Twitter blog after the bash and wrote: "Just finished performing Hero, We Belong Together and BRING IT ON HOME - a song I wrote especially for the event."
The Plaza Hotel party took place hours after Obama mingled with guests at actress Sarah Jessica Parker's house for another political fundraiser, which was co-hosted by Vogue editor Anna Wintour and attended by Aretha Franklin and Meryl Streep.