The singer confirmed reports he is dating childhood friend Sophia Smith during a press conference (via Yahoo OMG) to promote 1D's new movie This Is Us.
The 'What Makes You Beautiful' singer is said to have met Sophia while they attended St. Peter's Collegiate in Wolverhampton together.
According to the Sunday Mirror, things are getting serious between Liam and Sophia, with Liam jetting her out to LA last week to watch 1D performing at the Staples Centre.
"Liam has really fallen for her. It's getting very serious, very fast," said an insider. "She's a sweet, normal girl who likes Liam for who he is, not because he's in the most famous boyband in the world."
Liam is thought to have split from previous girlfriend Danielle Peazer in May. He had been dating the dancer since meeting her on X Factor in 2010.
At the time, it was suggested the duo parted ways amicably, with Liam's crazy schedule being a factor.
We'll get a look at that crazy schedule when 1D's movie This Is Us - giving us a look at their daily lives - opens in cinemas on Thursday.
Watch a trailer for This Is Us below: