POP & ROCK

Ahrgus Juilliard, who co-authored a book on the life of ex-Supreme Mary Wilson, sued the singer Tuesday contending she is owed back royalties and should share in any profits from film or TV treatments of the book. Juilliard, co-author of “DreamGirl: My Life as a Supreme,” seeks at least $300,000 in her Los Angeles County Superior Court suit against Wilson. Juilliard contends a 1984 agreement gave her 30% of the book’s net profits in addition to her salary. She also objected to “wardrobe” costs coming out of the royalties, saying “wardrobe as a book expense is wholly inappropriate” and said other expenses, altogether totaling $88,541, were “abnormally and unjustifiably high.” Wilson could not be reached for immediate comment.