Rangers have announced the signing of Oscar Cortes on a one-year loan deal with an obligation to buy in the summer of 2025.
The 20-year-old initially arrived at Ibrox in February on a six-month loan deal with an option to buy, and he impressed during his short spell with the Gers.
Cortes made seven first-team appearances for Philippe Clement's side, scoring once and providing two assists, but his season was cut short by a muscle injury picked up against Kilmarnock on February 28.
The Colombian winger, who has one international cap for his country, has continued to carry out his rehab in Glasgow and has now agreed to remain at Rangers for the 2024-25 campaign.
Cortes will spend next season on loan at Ibrox before putting pen to paper on a four-year contract through to the summer of 2029.
"I am delighted to be able to stay at Rangers," Cortes told the club's official website after agreeing his new deal. "It was an honour and privilege for me to join the club in February and I was enjoying my football under the manager and playing alongside my teammates.
"Sadly, the injury ended my season early, but I have been working hard and I am excited to help the team and play in front of the wonderful fans again soon."
Cortes leaves Lens after making just four first-team appearances following his permanent move from homeland club Millonarios in July 2023.
Gers boss Clement added: "I am really pleased to have Oscar coming back. He was a big asset to the squad when he came to the club and he showed the qualities that attracted him to us.
"Oscar suffered a setback, but he has worked tirelessly during his recovery and I am sure all of the fans are looking forward to seeing him again next season."
Director of recruitment Nils Koppen continued: "Oscar's Rangers career started brightly and he showed the technical ability, pace and goal threat he carries.
"He was unfortunate to miss the final few months of the campaign, but we believe he can be an important player for the team going forward.
"He has really loved being at the club and we feel he will get even better when he is fully fit again working under the manager and his coaching staff."
Cortes becomes Rangers' second signing ahead of the summer transfer window after Brazilian left-back Jefte, who will join the Gers for a reported £2m on a four-year deal from Fluminense.