Mariah Carey is back in concert touring along Lionel Ritchie. "All the Hits" Tour has been confirmed by both artists. On Monday, Dec. 12, Live Nation along with Carey and Richie announced the said tour. The 46-year-old diva will be Ritchie's very special guest for 35 shows, Entertainment Tonight.

"All the Hits" Tour will start off in Baltimore, Maryland, on March 15, and ends in Fort Lauderdale, Florida, on May 27. Both artists have five Grammy awards. So expect their greatest hits will be sung during the tour.

The 67-year-old hitmaker, Ritchie is known for his hits such as "Endless Love," "Lady," "Truly," "All Night Long (All Night)," "Penny Lover," "Stuck On You," "Hello," "Say You, Say Me," "Dancing on the Ceiling," and "We Are The World." Meanwhile, Carey has written 17 of her 18 songs including "Fantasy," "Always Be My Baby," "Hero," "Touch My Body," "One Sweet Day" and "We Belong Together." All her written songs have hit number one on the Billboard Hot 100.

Currently, the diva has a holiday residency at the Beacon Theater in New York City for her concert tour "Mariah's World." She will stay there until Dec. 17. Celebrities who appeared on her shows were John Legend and R. Kelly, Beyonce Knowles.

"Halo" hitmaker Knowles stopped by on Dec. 11, Sunday. She even took a selfie with "All I Want for Christmas Is You" singer. Beyonce has been excited to share her image with Carey.

On the other hand, Carey took Instagram to share a backstage selfie with the 35-year-old diva, Beyonce. She thanked Knowles for showing up for her concert.

This is not the first time that both divas posed together. Blast from the past, in February, Carey and Beyoncé snapped a pic together while they were at HeartView Global Foundation in Los Angeles, according to US Magazine.