Generate a boolean for where a value in a field matches that in another column

Question

So I have a DataFrame with a field that I want to match to another and create a boolean where one entry exists in another.

Here is an example;

df1:

Column1
AAA
BBB
CCC
DDD
EEE

df2:

Column2
DDD
EEE
FFF
GGG
BBB

Result:

BooleanResult
True
True
False
False
True

The Boolean result is where Column2 exists in Column1

I have been thinking along the lines of using enumerate() and in somehow