Create Two Separate Queries

I am trying to make a custom template to query posts posted in regular WordPress Category AND custom posts created by the Plugin “All In One Event Calendar”.

I have created a template page that will call either query. Is it possible to call both at the same time? This is what I have so far:

$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$args = array(
  'cat' => 20,
  'paged' => $paged
);
$cals = array(
  'post_type'=> 'ai1ec_event',
  'paged' => $paged
);

$myquery = array_merge($args,$cals);

query_posts($myquery);

I want $myquery to show all the posts in BOTH $args and $cals at the same time.