Together, NoLay, Lioness, Lady Leshurr and Lady Chann are four of the deadliest on-mic talents the grime scene has ever seen. It's tough to pick out one particular highlight from this historic 2009 set, and not just because their styles are so different.

Lady Chann earns an early wheel-up thanks to her rapid-fire ragga flow — and the heat never lets up. Even someone as fearless as NoLay admits she was reluctant to follow her, but quickly puts her trepidation aside to knock out a nimble, quick-witted run packed with blink-and-you'll-miss-it wordplay. Lioness then follows with a cool, calm and collected freestyle so potent she silences the room. Finally, it's the turn of a fresh-faced Lady Leshurr who reps hard for Brum with a breathless, tightly-packed freestyle of her own.

The level of talent in the room that day was sky high and anyone who listened live won't be at all surprised to see that all four MCs have achieved legend status in their own rights.