1. can i get sued if i have a small plotline that includes say... Zac Efron, the record label Def Jam, and Rihanna, and i use their actual names? 2. the reason i'm asking is because i tend to hate in books when they invent celebrities or labels or films because i never have a true sense of like how big the celebrity is and who they are. it's just a name. i've read some books that use real celeb names and it is better for me. and as a writer shouldn't you write what you actually like? 3. even if the book is fiction... can i get into trouble for using real names like that?