"It's there", the New York Post quoted Adams as saying.
A huge fan of the rocker, who died in 1970 at the age of 27 after an overdose of heroin, Adams, 36, said she has mixed emotions about taking on the character of one of America's edgiest, most esteemed music legends.
"I'm feeling excited, scared - all of the things," she added.
Washington(ANI): Amy Adams, usually known for playing characters with sunny dispositions, will now be seen in a darker role, that of Janis Joplin, in an upcoming biopic. Adams confirmed at the week's Variety Power Women's Luncheon that she would play late rocker Janis Joplin.