L-p space: p-norm proof

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Can somebody put me in the right direction to prove that:

$\lim_{p \to 1} \lVert f \rVert_{p}^p=\lVert f \rVert_{1}$ ?

Maybe this will be a beginning:

If $f \in$ $\mathcal{L}^1(\mu)\cap \mathcal{L}^2(\mu)$, it follows that $f \in \mathcal{L}^p(\mu)$ for all $1\leq p\leq 2$.

Thanx in advance!

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Prove that $p \mapsto \|f\|_p$ is continuous on $[1,2]$ and then by continuity of $t \mapsto t^p$ we know that $p \mapsto \|f\|_p^p$ is continuous on $[1,2]$.

It follows that $$\lim_{p \to 1} \lVert f \rVert_{p}^p=\lVert f \rVert_{1}$$