The "I'm a slattern and proud of it" look has been very popular in Europe since the 60s for anyone presently younger than 60. I was completely appalled at the second wife's clothing at Luciano Pavarotti's funeral, even though she was his 34-years-younger homewrecker trophy.
Even the rock'n'rollers showed up in black suits and had run a comb through their hair, although Bono's wife was showing plenty of boobage under her suit.