Ariana Grande was grabbed in shocking scenes as she walked the red carpet for the premiere of Wicked: For Good in Singapore. The 32-year-old was greeting fans from the yellow carpet event - in a nod to Oz - when a man suddenly ran towards her and put his arm around her shoulders. This prompted her co-star Cynthia Erivo, 38, to leap into action and push the man away from a clearly bewildered Ariana. In the clip Cynthia, who plays Elphaba to Ariana's Glinda in the second part of the hit movie