News Hipgnosis Songs acquires 100% of Tricky Stewart music catalogTricky co-wrote Rihanna’s Umbrella and Beyoncé’s Single Ladies (Put A Ring On It)
News Merck Mercuriadis fund pays $23m to buy 75% stake in The-Dream catalogDeal includes 302 songs, performed by the likes of Justin Bieber, Beyoncé, Rihanna and Jay-Z