And it appears that it was a look that went down well with Jennifer's fans who used Twitter to comment on how beautiful they thought the singer, actress and judge looked.
Whilst one fan tweeted: "@JLo @AmericanIdol you looked absolutely stunning !!", another fan also tweeted in delight: "@JLo @AmericanIdol Luv the look! Super Fab!! Make up and the #scrunchy hair!! Totally Cute!"
"@JLo @AmericanIdol LOVED the 80's look last night!", was another reaction from an American Idol viewer which was echoed by another fan's post on the social networking site which read:
"@JLo @AmericanIdol Love your style Jennifer!! U ROCK!! xoxo"

Jennifer went all 80s on last night's show (American Idol / Youtube)
One fan who was so excited that they had to use caps lock, commented: "@JLo @AmericanIdol *** STILL LOOKING STUNNING AS EVER ***", whilst another fan added: "@JLo @AmericanIdol mami you look hot with tha 80's hair style. Luh it ."
"@JLo @AmericanIdol I like the hair do for the 80s @JLo @AmericanIdol that hair is hot on you! Totally rockin it!" and "@JLo @AmericanIdol JLo you look great with any style", were two other comments that were made about how great Jennifer looked.
What did you think of Jen's 80s inspired hair? Loved it or hated it?