The Samoan Test centre will arrive at the BT Sport Arms Park from the Hurricanes at the end of the Super Rugby season this summer, re-uniting him with his former coach Mark Hammett.
Lee-Lo, 28, has committed his future to the region after making his debut for Samoa in their 23-13 triumph over Canada in November. He has played New Zealand provincial rugby for Counties Manukau since 2009, going on to make his Super 15 debut under Hammett at the Hurricanes in 2013.
The Blues are in PRO12 action at home Leinster on Saturday after battling back to claim victory at the Newport Gwent Dragons on New Year’s Day. They trail the Irish province by 14 points after a slow start in the league, but will be hoping victory can act as a springboard towards the European Champions Cup qualifying places.
Lee-Lo said: “I’m excited about the move to the northern hemisphere to represent Cardiff Blues and the chance to once again play for Hammer.
“I obviously know him well from our time together at the Hurricanes and I’m delighted to be able to join him in Wales and look to bring success to the Blues.
“I’ve a big season ahead for the Hurricanes in Super Rugby and also hope to play for my country in the 2015 Rugby World Cup. I will then start a new chapter in my career at the Blues.
“There are some fantastic players at the region and I know Hammer is keen to develop that further and bring success. I look forward to playing a major part in that story over the coming years.”
