The 'Not Myself Tonight' star, who filed for divorce from husband Jordan Bratman earlier this week, apparently flew to Oahu with friend Tricky Stewart on Thursday.
Life & Style reports that she will attend the opening of the Edition Hotel while she's in Waikiki.
A source said: "She has a packed weekend ahead of her, including yoga, surfing lessons, hikes, lunches, VIP dinners and cocktail parties."
Aguilera is rumoured to be performing on an upcoming X Factor live show.
