Blooming Mariah Carey and her baby bump welcome in the holidays with the Obamas at a Christmas concert

By DAILY MAIL REPORTER Mariah Carey's bump was neatly tied up with the bow on her long red dress A pregnant and glowing Mariah Carey helped President Barack Obama and his family ring in the holidays Sunday night at the annual 'Christmas in Washington' concert.Carey showed off her growing baby bump in a long red dress. She is expecting her first child with husband Nick Cannon.The festivities,