Here's what's happening around the Web this morning:

Lily Allen Unveils Vintage-Inspired Ready-To-Wear Collection
Something to sing about? Lily Allen and her sister Sarah Owen expand their retail venture, Lucy in Disguise, with the launch of an 18-piece collection of pieces for pre-fall.

Mariah Carey Paints A Butterfly On Her Baby Bump
Mariah Carey gets festive -- and keeps her baby bump in style -- on her 42nd birthday by painting a pink and blue butterfly on her pregnant belly.
[New York Daily News]

Rihanna Wears Spray-On Hotpants For Rolling Stone Cover
Cheeky girl! RiRi covers the latest issue of Rolling Stone, wearing a racy pair of spray-on metallic shorts and a tank top.
[Just Jared]

Princess Diana's Backup Wedding Dress Revealed
Something old, new, blue, times two? Princess Diana's spare wedding dress, created by Elizabeth Emanuel, has been revealed for the first time.

Erin O'Connor's Personal Assistant Stole £15,000 From The Model, Faces Jail Time
Take the money and run! Model Erin O'Connor's former personal assistant stole up to £15,000, which she spent on exotic holidays and a new bathroom.
[Daily Mail]