Last week we wrote about how social music service Rdio was picking up a round of funding from Mangrove Capital Partners. Today the company officially announced the news. It’s a $17.5 million investment in a round being led by Mangrove. Rdio has also added a music industry heavyweight to its…

The mobile music space has just picked up a bit more capital: Rdio, music discovery and sharing startup, has raised financing from Mangrove Capital Partners. Rdio was founded by Niklas Zennstrom and Janus Friis, pictured, who had also created Skype and Joost and file sharing site Kazaa.

Skype co-founders Niklas Zennström and Janus Friis have raised $165 million for their second venture fund which will mainly back European high growth tech startups. Zennström and Friis—who also started Kazaa and Joost—had initially aimed to raise $266 million for the fund a year ago but downplay the shortfall telling…