Sure, Susan Boyle's likeable enough... wouldn't want to be her though
Didn't she get all kinds of stress-related health problems after the programme ended?
To combine the two previous wishes: you are now Captain Liv Tyler, space explorer. This retroactively changes the plot for the 1998 movie Armageddon - Liv's character Grace Stamper goes up into space instead of Bruce Willis's character Harry Stamper. Consequently Harry doesn't sacrifice himself to save us all and Earth gets smashed by the big scary meteorite. You spend the rest of your days in orbit around a ruined planet with only Ben Affleck and Steve Buscemi for company. And Steve just got a funny look in his eyes...
I wish the Easter Bunny was real.