The former Charlton ace also helped England’s U20s win the U20 World Cup in 2017.
But with Lookman far off a senior international call-up to Gareth Southgate’s squad, the forward decided he’d make the switch to play for Nigeria.
And according to The Associated Press, Fifa have approved the switch.
Lookman has impressed in England this season, making 22 appearances for the Foxes across all competitions.
The attacker has managed to find the back of the net on five occasions and has picked up three assists along the way too.
His form could very well earn him a move back to the Premier League in the summer having spent the last two seasons on loan in the division