Which actor had the most unexpected cameo performance in a movie?

 1.Michael Jackson in 'Men in Black 2' (2002)

2. John McCain in 'Parks and Recreation' (2012)

3. Joe Biden in 'Parks and Recreation'

4. The Jonas Brothers in 'Night at the Museum 2' (2009)\

5. Elon Musk in 'Iron Man 2' (2010)

6. Donald Trump in 'Home Alone 2: Lost In New York' (1992)