example.tex

\documentclass{beamer}

\usetheme{bjeldbak}

\title{Testing}
\author{Martin Bjeldbak Madsen}

\begin{document}
  {%
    \setbeamertemplate{headline}{}
    \frame{\titlepage}
  }

  \begin{frame}
    It's working!
  \end{frame}
\end{document}