Adding an email to latex file

Question

Is it possible to add an email just below the authors in this code also is it possible to make the output come as a two column paper.

\documentclass[11pt,oneside,a4paper]{article}
\usepackage{hyperref}


\title{Hello}
\author{User1 \and User2}



\begin{document}
\maketitle

\section{Introduction}
A1
\section{Literature Review}
A2

\section{Conclusion}
A2

\end{document}