"How Long's It Been?" is the second release for Hennessy's Masters of Potential series, after last year's Krept & Konan / Slaves mashup "Told You / The Hunter".
The new collaboration is Flohio's first release since last month's "Hell Bent".
"How Long's It Been?" will be released tomorrow (18 July). Flohio plays Finland's Flow Festival next month. Find out more.