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.
[WWD]

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.
[People]

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]