Being an only child may be lonely, but it definitely has its benefits. Onlies don't have to deal with sibling rivalry or split parental attention, plus it's pretty cool to be a one-of-a-kind family original! There are even some studies that suggest only children are more likely to score high on intelligence and self-esteem than kids with siblings, thanks to all that undivided time with the 'rents. And though there's a lot of famous large families out there (the Kardashians, the Duggars, the Weasleys), there are plenty of celebrities holding their own as only children. Here's our list of awesome sibling-less sports stars, musicians, and actors. Enjoy!