31-year-old Sailosi Tagicakibau has joined Wasps from London Irish, according to BBC Sport.
The winger spent nine years with the Exiles, but has been in South Africa at Super Rugby club the Stormers since February.
The Samoan international has featured 21 times for his country, whilst also turning out for the Pacific Islands on multiple occasions.
During his time at the Madejski Stadium, Tagicakibau proved to be one of the best wide-men in the English Premiership, destroying defences with his explosive pace and power.
In 109 appearances for the Exiles, he scored 37 tries, helping them to finish third in 2006 and 2009, the latter of which they lost in the Grand Final to Leicester Tigers by a single point.
However, this was not enough to see him tie down a regular place last season, seeking playing time with the Stormers in Cape Town.
Tagicakibau started six times for them, but got his only try when he came off the bench to touch down in the dying minutes in a 33-0 victory over fellow South African side the Cheetahs in May.
Despite his best efforts, the Stormers finished 11th, five places of the playoff places.
Upon his return to England, the Samoan soon realised that his spot in the side had been taken by Topsy Ojo and Andy Fenby.
Battle for starting berth
His move to the Wasps will give them experience, but he will be fighting for a place with the likes of Tongan star Will Helu, and English duo Tom Varndell and Christian Wade.
Tagicakibau is just one of a host of signings that the Adams Park outfit have made this season. Head coach Dai Young has brought in half-backs Ruaridh Jackson of Scotland and former Newcastle Falcons and Sale Sharks man Rob Miller.
Centre Alapati Leiua, who is also adept on the wing, also starred in the Super Rugby competition with Tagicakibau last season, moving to London from New Zealand-based Hurricanes.
James Gaskell is one of two locks to join the ranks at Wasps during the close season, along Welsh international Bradley Davies, while prop Lorenzo Cittadini signed from Benetton Treviso, becoming the third Italian at the club, with Andrea Masi and Carlo Festuccia already at Wasps.
All these new arrivals could get their first taste of Premiership rugby when they travel to the Allianz Park on the 6th September for the first game of the new season against last year’s losing finalists Saracens.
The Wasps will also be in the new European Champions Cup, beginning their campaign with a trip to Irish side Leinster on 19th October.