Marian Rivera birthday celebration on Party Pilipinas yesterday, August 12, 2012. Marian Rivera turned 28 years old that day. Many people are wondering if that is really her real age though. Most stars in Philippine Showbiz lie about their true age. As part of her 28th birthday celebrations, Marian Rivera led a blood donation drive with the Philippine Red Cross and a party with her loyal fan club, the MarianKnights. Before this, she also joined the Philippine Red Cross in its relief and rescue operations during the harrowing Habagat floods. Marian Rivera is currently shooting the Regal Entertainment movie, “Hanggang Ngayon,” which will pair her for the first time with Coco Martin, who is from her rival network ABS-CBN. Marian Rivera is also slated to star as Angeline Choo in the Pinoy version of the hit Koreanovela, “Temptation of Wife.” She currently stars in the sitcom “Tweets For My Sweet.” Photos courtesy of MarianKnights.