Uh-oh, drama is a-brewin' on the Glee set and we're not talking about the scripted dramz!
Talk about a figurative slap in the face!
But maybe life is imitating art for these two!
Niall Horan has a special place in our One Direction loving hearts.
The uncle-to-be is sweet, he's sensitive, and he can carry one of 1D's biggest hits without any of his bandmates' help.
In between acting as best man at his brother's wedding in Ireland, the cutie sang an impromptu rendition of Little Things all by himself.
Now we know that if the boys ever breaks up, Niall will have NO PROBLEM going solo.
Ch-ch-check adorbz performance (above)!!!!