described Rihanna as “immaculate,” “a glowing goddess,” and “the coolest woman in the world” who “transcends sexiness” and “isn’t like anyone else.”

Chris Martin’s take on Bad Girl RiRi is a little more, uh, unique — he likens her to “a beautifully squeezed tube of toothpaste.”

She can turn anything into gold with that voice,” he said. “Here’s the thing: if you speak to a good singing teacher about great opera singers, they will talk about consistency of tone… Rihanna has this thick tone, so it’s very hard to annoy anybody. It’s like a beautifully squeezed tube of toothpaste.”

OK, yes, it’s a head-scratching simile… but allow Martin to explain further:

“When you think of Rihanna’s voice you think of this whole, rich thing, solid like a tree trunk. Drake is pretty similar,” he continued. “But Rihanna’s voice is just delicious for your ear. Sinatra had the same thing; anything he sang sounded pleasing to most people.”