Usher Vacations in Bali with Russell Simmons, Partakes in Yoga Session _ TMZ TV

Usher made a pit stop on his Bali vacation, visiting one of the island's most famous residents ... Russell Simmons.

The singer carved some time out from his own getaway with his wife, Jennifer Goicoechea, to meet up with the hip hop mogul for some yoga, meditation and inner peace ... and it sounds like Usher's visit is lifting Russell's spirits.