Angela Weiss/Getty Our first contender of the month is Dave Grohl. The Foo Fighters frontman, and "nice guy" of rock shocked the world when he made a post on instagram this month announcing that he was now the father of baby "born outside of his marriage." Grohl has been married to his wife, Robyn Blum, for over 20 years and the two share three daughters aged 18, 15 and 10. Despite Grohl's nice guy persona, there have been rampant rumours of his infidelity for years. In fact, his first marriage to Jennifer Youngblood ended in 1997 due to him cheating. It is alleged that Grohl contacted a divorce lawyer prior to sharing his announcement, and it's also been alleged that he accused his wife of having a "flirty" relationship with her tennis coach. How bold! Shannon Finny/Getty Next up is presidential dropout and brain worm host Robert F Kennedy, Jr. RFK drew criticism at the end of August when an old interview his daughter did resurfaced whereby she...