But the 'Call Me Maybe' singer has gone for a drastic colour switch-up and dyed her locks a fierce orange-toned red.
And we reckon her risk totally paid off - she looks stunning!
The Canadian starlet first showcased newly dyed locks at the 2013 Billboard Music Awards last month.
But when Carly stepped out at the MTV Video Music Awards Japan at the weekend (22 June), her flame-red barnet looked even lighter than usual.
And don't get us started on that mirror-like shine. There must be a wonder product behind her glossy mane - we just need to find out what it is!
What do you think of Carly's new hair colour? Let us know by commenting below as the best comment across the site each week wins £50!