I don't understand why Capitol thought it would be great idea to release Birthday as 4th single. LL or WoA were most obvious single choices.
They wanted to show the different flavors of the album. Apparently, Roar is Vanilla, Uncle is Mint Chocolate, Dark Horse is Chocolate and Birthday is Cheese
Had no clue it was top 20 so officially all the singles this era went top 10 or top 20 not bad ppl on here just expect all of her singles to go top 10, so far the era has been okay you guys can expect all the songs to go top 10