Mariah Carey and Lenny Kravitz are the latest celebrity couple to have fans talking. The two have been allegedly spending a lot of time together, which has sparked not only fan interest but several steamy rumors.Music fans are intrigued by a new rumor about Lenny Kravitz and Mariah Carey. The two are reportedly longtime friends, but they have recently begun spending much time together.Recent reports from Life & Style suggest that the romance rumors are not without substance.