Mercedes' man crush on Usher continues as the company has invited him to test drive the A45 AMG and build an engine for his own SLS AMG.

The Grammy Award winning singer said he "can hardly wait to get behind the wheel" of the A45 AMG because it's "so absolutely cool and sexy." Unsurprisingly, the pop star will be talking about his experience on Facebook which means this is more about marketing than anything else. Regardless, Usher already owns a few Benz's including a CLS 63 AMG and a Sprinter which he "enjoys driving" for family duty.

As we have previously reported, the A45 AMG features a turbocharged 2.0-liter four-cylinder engine that develops 360 HP (265 kW) and 450 Nm (332 lb-ft) of torque. It is connected to a seven-speed AMG SPEEDSHIFT dual-clutch transmission which sends power to an all-wheel drive system. This enables the hatchback to accelerate from 0-62 mph (0-100 km/h) in 4.6 seconds, before hitting an electronically-limited top speed of 155 mph (250 km/h).

Gallery: Mercedes enlists Usher to promote the A45 AMG

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