Which colorful British singer was behind the hit song "Rehab", which won her 5 Grammy Awards in 2008?

Explanation

Amy Jade Winehouse (b. 1983-2011) was an English singer-songwriter. Her style is a mixture of jazz and soul, and has won her great acclaim, in particular the hit song Rehab. She has released the albums Frank (2003), and Back to Black (2006). Amy Winehouse's wild and spontaneous lifestyle with alcohol, drugs and mental problems has provided ample material for the tabloids.