TITLE: If $a,b \in \mathbb{C}$ are transcendental over $\mathbb{Q}$ then is $a^b$ necessarily transcendental over $\mathbb{Q}$?
QUESTION [6 upvotes]: If $a,b \in \mathbb{C}$ are transcendental over $\mathbb{Q}$ then is $a^b$ is necessarily transcendental over $\mathbb{Q}$ ?

In Wiki I found answer is no but I can't cook up an counter example. Please someone provide a counterexample.

REPLY [8 votes]: Another one 
$$e^{i\pi}=-1$$
$e$ and $\pi$ therefore $i\pi$ are transcendental and not $-1$