R&B diva Mariah Carey has paid tribute to the late Whitney Houston in a new music video. Digital Spy reports that Mariah, who considered herself a good friend of Whitney and who recorded the duet When You Believe with Whitney, was among the many stars who attended Whitney’s funeral service. Mariah has now compiled highlights of her favourite memories of Houston on her official YouTube page. The specially-produced video includes clips from their 'When You Believe' music video as well as pictures of the two stars together at awards shows and red carpet events. Mariah also posted the video remembrance on her Twitter, writing: "Whitney, my friend, I love you, I miss you. Your legend lives on forever. The two stars were admitted rivals as their careers took off in the early 1990s, but later became friends when they recorded 'When You Believe' for the 1998 film The Prince of Egypt. Mariah was among the many stars who blogged about Houston in the hours after her death on February 11. She tweeted at the time: "Heartbroken and in tears over the shocking death of my friend, the incomparable Ms. Whitney Houston. My heartfelt condolences to Whitney's family and to all her millions of fans throughout the world. "She will never be forgotten as one of the greatest voices to ever grace the earth. Watch the video HERE!