Microsoft has knocked 50 per cent off the asking price of a range of DLCs as part of a one-day only Black Friday sale.
Mass Effect 3: Leviathan and Batman Arkham City: Harley Quinn's Revenge have both been knocked down to just 400 Microsoft Points each, while Forza Horizon's October Car Pack is available for just 200 MSP.
If you're interested, be sure to pick them up soon. The promotion will run for only 24 hours.
And don't forget, there's plenty more items on offer in Xbox LIVE's Black Friday sale, including Rock Band Blitz and Spelunky.
Source: Major Nelson