Amy Winehouse: Back From Black

7/13/2009 8:04 AM PDT BY TMZ STAFF
Never underestimate the power of an 8-month vacation on the Caribbean island of St Lucia sans booze and Blake to make even singer Amy Winehouse look healthy, sane and refreshed.

Wearing her best Cosby sweater, Winehouse returned to London today to continue work on her third album -- and hopefully her tour of sobriety.

ugly celebrity sweaters