Background: Dr. Soo Wincci (Chinese: Su Ying Zhi ; pinyin: Su Yingzhi) is an award-winning Malaysian singer, recording artist, actress, composer, celebrity chef, host, model, beauty queen, PhD holder and also an entrepreneur. Soo was crowned Miss World Malaysia 2008 and represented Malaysia in the Miss World 2008 beauty pageant. In 2013, She was selected by Hollywood's Independence Critics as the world Top 100 most beautiful women in the world.
Context: In 2013, she was selected by Hollywood's Independence Critics as the world Top 100 most beautiful women in the world. In 2014, Soo founded her own talent management company, Beyond Artistes.  In 2014, she completed the 4th place for Master Chef All Stars Malaysia. In the same year, she released her 2nd international Chinese album in Taiwan. All the songs feature on chart of KKBox Taiwan and also other charts in Taiwan and Malaysia. The same year she played as the historical role of Hang Li Po in the tele movie titled "Takhta". The same year, she won awards for her Chinese songs.  In 2015, she won the "Media Choice Award" in Malaysia's most prestige Chinese music award (PWH). She was selected as the Top 10 Chinese actor and actress for NTV7. She also acted as the main lead for the drama "The Injustice Stranger". She held her first solo concert Inwinccible at Plenary Hall, KLCC, showcasing her talents in singing, languages and also dangerous stunts. She invested RM500,000 of her own money for the concert after several sponsors pulled out due to a video she posted in August, where she urged the Malaysian Prime Minister, Datuk Seri Najib Razak to resign.  In end of 2015, her drama titled "Injustice Stranger" garnered the highest rating drama of the year while winning all 5 out of 5 online voting awards which includes Most Popular Actress, Most Popular Actors, Most Popular On Screen Couple, Most Popular Drama Song and Most Popular Drama.
Question: What was the video she posted?. Whats the answer?
she urged the Malaysian Prime Minister, Datuk Seri Najib Razak to resign.