How can I add names on the right and left hand side of the title page?

Question

I want to add my supervisor's name and on the left side and my advisory committee members' names to the left side of my beamer title page? Kindly tell me how can I do that. Currently it is like this,

\documentclass[aspectratio=149]{beamer}
\usetheme{CambridgeUS}
\title{Something}
\author{Someone}
\institute{\textsc{Somewhere}}
\begin{document}
    \begin{frame}
        \maketitle
    \end{frame}
\end{document}

Answer 1

An example is given if you find it useful.

\documentclass[aspectratio=149]{beamer}
\usetheme{CambridgeUS}
\title{Something}
\author{Someone}
\institute{\textsc{Somewhere}}
\begin{document}
    \begin{frame}
        \maketitle
        \begin{columns}[t]
    \begin{column}{.5\textwidth}
      \hspace*{10mm} Mr. X\\
      \hspace*{10mm} X College
    \end{column}
    \begin{column}{.5\textwidth}
      Mr. Y\\
      X College
    \end{column}
    \end{columns}
\end{frame}

\end{document}