The veteran centre-back becomes the Hoops second summer signing.
Liverpool's Kolo Toure during the press conference
The former Liverpool and Arsenal defender completed his switch to Parkhead today and will link up with former manager Brendan Rodgers in Glasgow.
“I feel great,” said the 35-year old. “I feel really excited because it’s going to be a new challenge for me. I’ve come to one of the biggest clubs in the world and it’s a privilege for me to be here.
Kolo Toure tackles Sevilla's Kevin Gameiro
“I know a few friends who play football here and I know what the club has been achieving, winning a lot of trophies and playing Champions League a lot so that’s something I’m looking at.
“I played with Brendan when he was at Liverpool and when we spoke about the chance for me to come here I was really happy because we know each other for a long time now. We’ve worked together and he’s a top manager. For me it’s a privilege to come and work with him again,” he added.
The experienced defender becomes Celtic’s second summer signing, after promising striker Moussa Dembele joined last month, and his arrived is further evidence of Rodger’s pulling power.
Celtic manager Brendan Rodgers
Celtic have struggled to attract and retain top class talent in recent years but the arrival of Rodgers has created a feel-good factor around Parkhead and increased ambition instantly.
Dembele was highly sought after but opted for Celtic and in Toure, the Hoops have pulled off another huge coup.
Kolo Toure in action with Villarreal's Cedric Bakambu
The former Ivory Coast international will add tremendous experience and quality to one of Celtic’s weakest positions as the Rodgers revolution starts to take shape.
Central defence has been a major concern for Celtic in recent weeks, with key men out injured and Efe Ambrose playing himself out of contention, but Toure’s arrival will ease those fears.
Celtic now turn their attention to Wednesday’s Champions League qualifier with FK Astana as they hope to keep the feel-good factor going at Parkhead.