Not only did they pose together at the annual Jingle Ball recently (and hint that they were staying at the same place together), but Liam has now taken it upon himself to sing Niall's hottest song: "Slow Hands".
"When you sing the wrong part of the song," Liam wrote, adding the face-palm emoji.
Oh Liam... at least you took a chonce.
Fans naturally lost it at the #Niam interaction.
Kings.