It looks like One Direction's Niall Horan met up with the boy band veterans this past weekend in London!!
amazing night! met the backstreet boys and new kids! super nice guys! got some good advice !
— Niall Horan (@NiallOfficial) April 30, 2012
The 1D member also tweeted that they played One Direction's hit What Makes You Beautiful in the O2 arena during the show and that it was "brilliant!"
Wow! That must've been quite a crazy experience for the young bloke!
Do we sense a NKOTBSB1D mega-tour in the works? Ha!
[Image via Backstreet Boys' Twitter.]