Spinal Tap to Reunite

There is a fine line between stupid and clever, but this news seems to fall in the latter category.

Spinal Tap is back, and this time the band wants to help save the world from global warming.

The mock heavy metal group immortalized in the 1984 mockumentary, "This is Spinal Tap," will reunite for a performance at Wembley Stadium in London as part of the Live Earth concerts scheduled worldwide for July 7.