Simplify the following text for a Grade 5 native English-speaking person.
Original: Promo singles were released for `` The Man Who Sold the World '' , `` Polly '' , `` Lake of Fire '' , and `` Where Did You Sleep Last Night '' .
Simplified: The singles were `` About a Girl '' , `` The Man Who Sold the World '' , `` Where Did You Sleep Last Night '' , and `` Lake of Fire '' .